When Do Fish Sleep? Part 21

Over the last few years, I've had a chance to meet an underpaid, unsung but fabulous group of people-booksellers. From the president and CEO of Waldenbooks, Harry Hoffman, to the managers of mall stores, Julie Lasher and Brian Scott Rossman; from B. Dalton's manager of Merchandise Planning and Communication, Mattie Goldberg, to all the folks at the Benjamins Bookstore in the Pittsburgh Airport, the booksellers I've met have been intelligent, committed, and inordinately good company. Thanks for providing me with an on-the-job education.

My friends and family have helped me survive a difficult year. Thanks to all who have lent support: Tony Alessandrini; Michael Barson; Rajat Basu; Ruth Basu; Jeff Bayone; Jean Behrend; Brenda Berkman; Cathy Berkman; Sharon Bishop; Carri Blees; Christopher Blees; Jon Blees; Bowling Green State University's Popular Culture Department; Jerry Braithwaite; Annette Brown; Arvin Brown; Herman Brown; Joann Carney; Janice Carr; Alvin Cooperman; Marilyn Cooperman; Judith Dahlman; Paul Dahlman; Sh.e.l.ly de Satnick; Linda Diamond; Joyce Ebert; Steve Feinberg; Fred Feldman; Gilda Feldman; Michael Feldman; Phil Feldman; Phyllis Fineman; Kris Fister; Linda Frank; Seth Freeman; Elizabeth Frenchman; Michele Gallery; Chris Geist; Jean Geist; Bonnie Gellas; Bea Gordon; Dan Gordon; Ken Gordon; Judy Goulding; Chris Graves; Christal Henner; Marilu Henner; Melodie Henner; David Hennes; Paula Hennes; Sheila Hennes; Sophie Hennes; Steve Hofman; Uday Ivatury; Terry Johnson; Sarah Jones; Mitch Kahn; Dimi Karras; Mary Katinos; Robin Kay; Stewart Kellerman; Harvey Kleinman; Mark Kohut; Claire Labine; Randy Ladenheim-Gil; Debbie Leitner; Jared Lilienstein; David Lynch; all my friends at the Manhattan Bridge Club; Phil Martin; Jeff McQuain; Julie Mears; Phil Mears; Carol Miller; Barbara Morrow; Phil Neel; Steve Nellisen; Millie North; Milt North; Charlie Nurse; Debbie Nye; Tom O'Brien; Pat O'Conner; Joanna Parker; Jeannie Perkins; Merril Perlman; Joan Pirkle; Larry Prussin; Joe Rawley; Rose Reiter; Brian Rose; Paul Rosenbaum; Carol Rostad; Tim Rostad; Susie Russenberger; Leslie Rugg; Tom Rugg; Gary Saunders; Joan Sanders; Mike Sanders; Norm Sanders; Cindy Shaha; Patricia Sheinwold; Kurtwood Smith; Susan Sherman Smith; Chris Soule; Karen Stoddard; Kat Stranger; Anne Swanson; Ed Swanson; Mike Szala; Josephine Teuscher; Carol Vellucci; Dan Vellucci; Hattie Was.h.i.+ngton; Julie Waxman; Roy Welland; Dennis Whelan; Devin Whelan; Heide Whelan; Lara Whelan; Jon White; Ann Whitney; Carol Williams; Maggie Wittenburg; Karen Wooldridge; Maureen Wylie; Charlotte Zdrok; Vladimir Zdrok; and Debbie Zuckerberg.

Well more than one thousand educators, inst.i.tutions, experts, foundations, corporations, and trade a.s.sociations were contacted for this book. Because we can't go to reference books to get our answers to Imponderables, we are dependent upon the generosity of the folks listed below. Although many other people supplied help, those listed below gave us information that led directly to the solution of Imponderables in this book: Sandra Abrams, a.s.sociated Services for the Blind; Richard B. Allen, Atlantic Offsh.o.r.e Fishermen's a.s.sociation; Dr. Robert D. Altman, A & A Veterinary Hospital; American Academy of Dermatology; American Hotel and Motel a.s.sociation; Carl Andrews, Hershey Foods; Richard A. Anthes, National Center for Atmospheric Research; Gerald S. Arenberg, National a.s.sociation of Chiefs of Police; Dr. Edward C. At.w.a.ter, American a.s.sociation for the History of Medicine.

Dr. Don E. Bailey, American a.s.sociation of Sheep and Goat Pract.i.tioners; Dr. Ian Bailey, School of Optometry, University of California, Berkeley; Jan Balkin, American Trucking a.s.sociations; Dr. Pat A. Barelli, American Rhinologic Society; Nancy Beiman, National Cartoonists Society; Roy Berces, Pacific Stock Exchange; Dr. William Berman, Society for Pediatric Research; Dr. William Bischoff, American Numismatic Society; Ed J. Blasko, Eastman Kodak Company; Dr. Peter Boyce, American Astronomical Society; Richard Brooks, Stouffer Hotels; Edwin L. Brown, American Culinary Federation; Bureau of the Mint, Department of the Treasury; Dr. Walter F. Burghardt, American Veterinary Society of Animal Behavior; Herbert H. Buzbee, International a.s.sociation of Coroners and Medical Examiners.

John Canemaker; Gerry Carr, International Game Fish a.s.sociation; Carel Carr, Yellow Pages Publishers a.s.sociation; Helen Castle, Kellogg's; Louis Chang; Bob Cochran, Society of Paper Money Collectors; Linden Cole, Society of Actuaries; Linda W. Coleman, Department of the Treasury, Bureau of Engraving and Printing; Robert L. Collette, National Fisheries Inst.i.tute; Dr. James D. Conroy, College of Veterinary Medicine; Charles T. Conway, Gillette Company; Philip S. Cooke, Inflight Food Service a.s.sociation; Captain K.L. Coskey, Navy Historical Foundation; Louise Cotter, National Cosmetology a.s.sociation; Danny J. Crawford, Marine Corps Historical Foundation; Edward Culleton, Green Olive Trade a.s.sociation.

Hubert R. Dagley II, American College of Sports Medicine; Paul N. Dane, Society of Wireless Pioneers; Neill Darmstadter, American Trucking a.s.sociation; Dr. Frank Davidoff, American College of Physicians; Professor Michael De L. Landon, American Society for Legal History; Brian M. Demkowicz, Maryland Academy of Sciences; Dr. Liberato John A.DiDio, International Federation of a.s.sociations of Anatomists; James J. Donahue, Duracell Inc.; Richard H. Dowhan, GTE Products; Don R. Duer, Still Bank Collectors Club of America; Thomas Dufficy, National a.s.sociation of Photographic Manufacturers; W.K. Bill Dunbar, Morse Telegraph Club.

Susan Ebaugh, Serta Inc.; Dr. William G. Eckert, INFORM; Carole L. Edwards, Mobil Oil Corporation; Peter Eisenstadt, New York Stock Exchange Archives; Kay Engelhardt, American Egg Board.

Raymond E. Falconer, Atmospheric Sciences Research Center, SUNY at Albany; Dr. Fred Feldman; Dr. Barry Fells, Epigraphic Society; Stanley Fenvessey, Fenvessey Consulting; Peter C. Fetterer, Kohler Company; Deidre Flynn, Popcorn Inst.i.tute; Bruce A. Foster, Sugar Industry Technologists; Don French, Radio Shack; Lester Frey, Villamarin Guillen.

Samuel R. Gammon, American Historical a.s.sociation; Dr. James Q. Gant, International Lunar Society; Bruce R. Gebhardt, North American Native Fishes a.s.sociation; Chris George, Rand McNally; Gerontology Research Center, National Inst.i.tute of Aging; Karen L. Glaske, United Professional Hors.e.m.e.n's a.s.sociation; Jacqueline Greenwood, Black & Decker; Patricia A. Guy, Bay Area Information System Reference Center.

Susan Hahn, United States Tennis a.s.sociation; Dr. John Hallett, Desert Research Inst.i.tute; Korynne Halverson, Evans Food Group; David A. Hamilton, Professional Ski Instructors of America; Lynn Hamlin, National Syndications Inc.; Darryl Hansen, Entomological Society of America; Carl Harbaugh, International a.s.sociation of Chiefs of Police; Dorcas R. Hardy, Commissioner of Social Security; John Harrington, Council for Periodical Distributors; Tamara J. Hartweg, Kraft; Connie Heatley, Direct Marketing a.s.sociation; Jim Heffernan, National Football League; Richard Heistchel, Schinder Elevator Company; Jacque Hetrick, Spalding Sports Worldwide; Shari Hiller, Sherwin-Williams Company; Janet Hinshaw, Wilson Ornithological Society; Robert C. Hockett, Council for Tobacco Research; d.i.c.k Hofacker, AT&T Bell Laboratories; Greg Hoffman, Jolly Time; Beverly Holmes, Frito-Lay Inc.; Dr. Daniel Hooker, University of North Carolina at Chapel Hill, Student Health Service; Richard H. Hopper; Donald Hoscheit, Osco Drug; Mark R. Houston, California Kiwifruit Commission; Professor Barbara J. Howe, National Council on Public History; Kenneth Hudnall, National Yellow Pages Agency a.s.sociation; Hyde Athletic Industries, Inc.

Dr. Peter Ihrke, American Academy of Veterinary Dermatology; International Bank Note Society; Helen Irwin, National Tennis Hall of Fame.

John Jay, Intercoiffure America; Dr. William P. Jollie, American a.s.sociation of Anatomists; Larry Josefowicz, Wilson Sporting Goods Company.

Jeff Kanipe, Astronomy; Robert Kaufman, Metropolitan Museum of Art; Edward E. Kavanaugh; Dr. Thomas P. Kearns, American Ophthalmological Society; Michele Kelley, American Hotel and Motel a.s.sociation; Dr. Anthony L. Kiorpes, University of Wisconsin, Madison, School of Veterinary Medicine; Dan Kistler, Christian Research Inst.i.tute; Dr. Ben Klein; Samuel Klein, United States Postal System; Ken Klippen, United Egg Producers; Dr. Kathleen Kovacs, American Veterinary Medicine a.s.sociation; Stanley Kranzer, Metropolitan Life.

Jean Lang, Fieldcrest; Keith Lattislaw, National Center for Health Statistics; John Laughton, American Standard; Mary Jane Laws, American Dairy a.s.sociation; Cathy Lawton, Shulton Inc.; Dr. Beverly Leffers, Milton Helpern Inst.i.tute of Forensic Medicine; Professor Alfonz Lengyel, Eastern College; d.i.c.k Levinson, H.Y. Aids Group; Peter H. Lewis, New York Times; Pierre Lilavois, New York City Sewer Department; Barbara Linton, National Audubon Society; Kenneth M. Liss, Liss Public Relations; John Loftus, Society of Collision Repair Specialists; Joan G. Lufrano, Foote, Cone & Belding; Lynne Luxton, American Foundation for the Blind.

William L. MacMillan III, Pencil Makers a.s.sociation; Alan MacRobert, Sky & Telescope; Dr. M. Mackauer, Center for Pest Management; Joseph D. Madden, Drug, Chemical and Allied Trades a.s.sociation; Reverend Robert L. Maddox, Americans United for Separation of Church and State; Mail Order a.s.sociation of America; William C. Mailhot, Gold Medal Flour; Michael Marchant, Ogden Allied Aviation Services; Ginny Marcin, Campbell Soup Company; Colonel Ronald G. Martin; Howard W. Mattson, Inst.i.tute of Food Technologists; Dr. Robert McCarley, Sleep Research Society; James P. McCauley, International a.s.sociation of Holiday Inns; Dr. Everett G. McDonough, Zotos International; William F. "Crow Chief" Meyer, Blackfeet Indian Writing Company; Mary D. Midkiff, American Horse Council; Jerry Miles, American Baseball Coaches a.s.sociation; David G. Miller, National a.s.sociation of Retail Druggists; Dr. Stephen Miller, American Optometric a.s.sociation; Robert J. Moody, General Electric; Rita Moroney, Office of the Postmaster General; Pete Morris, C.H. Morse Stamp Company; Bill Mortimer, Life Insurance Marketing and Research a.s.sociation; George Motture, Wise Foods; Meg Wehby Muething; Arthur J. Mullkoff, American Concrete Inst.i.tute; Edith Munro, Corn Refiners a.s.sociation; Gordon W. Murrey, Murrey International; D.C. Myntti, American Bankers a.s.sociation.

Dr. David Nash, American College of Physicians; National Inst.i.tute on Aging, National Inst.i.tute of Health; Arnie Nelson, Yellow Spots; David Nystrom, U.S. Geological Survey.

Norman Oehlke, International Fabricare Inst.i.tute; Carl Oppedahl.

Dr. Lawrence Charles Parish, History of Dermatology Society; Dianne V. Patterson, United States Postal System; William R. Paxton, Federal Railroad Administration; Peggy Pegram, Bubble Yum; Joy Perillo, AT&T Archives; Pillsbury Company; Leslye Piqueris, American Foundation for the Blind; Lawrie Pitcher Platt, Tupperware Home Parties; Bruce Pluckhahn, National Bowling Hall of Fame and Museum; Proctor-Silex; Dr. Robert Provine, University of Maryland; Roy S. Pung, Photo Marketing a.s.sociation, International; Thomas L. Purvis, Inst.i.tute of Early American History and Culture.

Jerry Rafats, National Agriculture Library; Dr. Salvatore Raiti, National Hormone and Pituitary Program; Monika Reed, Berol USA; Walter Reed, National Automatic Merchandising a.s.sociation; Al Rickard, Snack Food a.s.sociation; Bob Riemer, Gasoline and Automotive Service Dealers; R.J. Reynolds; Robert S. Robe, Scipio Society of Naval and Military History; Dr. Robert R. Rofen, Aquatic Research Inst.i.tute; Tim Ross, U.S. Ski Coaches a.s.sociation; Professor Mary H. Ross, Virginia Polytechnic Inst.i.tute; Rosemary Rushka, American Academy of Ophthalmology.

Micael Saba, Attiyeh Foundation; Gabe Samuels, Yellow Spots; Jose Luis Perez Sanchez, Commercial Office of the Emba.s.sy of Spain; Ronald A. Schachar, a.s.sociation for the Advancement of Ophthalmology; Schick Division, Warner-Lambert; Janet Seagle, U.S. Golf a.s.sociation; William Seitz, Neighborhood Cleaners a.s.sociation; Gwen Sells, Tall Clubs International; Dale Servetnick, Department of the Treasury; Norman F. Sharp, Cigar a.s.sociation of America; Anthony H. Siegel, Ametek; Dr. M.S. Silberman; Joan Silverman, Citicorp; Dave Smith, Disney Company; Linda Smith, National Restaurant a.s.sociation; Sid Smith, National a.s.sociation of Hosiery Manufacturers; Wayne Smith, Sunbeam Appliance Company; Bruce V. Snow, Dairylea Cooperative; Dona Sorensen, Fleischmann's Yeast; Marshall Sorkin, Carter-Wallace; Richard Spader, American Angus a.s.sociation; Dr. Bob Spanyer, American College of Physicians; John J. Suarez, National Pest Control a.s.sociation; Amy Sudol, Chase Manhattan; Richard J. Sullivan, Olive Oil Group.

David Taylor, Bank Administration Inst.i.tute; Thomas A. Tervo, Stearns and Foster Bedding; William D. Toohey, Tobacco Inst.i.tute; Victor Toth, Multi-Tenant Telecommunications a.s.sociation; Bob Toy, Telephone Pioneers of America; Jim Trdinich, National League.

Ralph E. Venk, Photographic Society of America; Dennis Vetock, U.S. Army Military History Inst.i.tute; Elaine Viets, St. Louis Post-Dispatch; Gerald F. Voigt, American Concrete Pavement a.s.sociation; Vulcan Foundry.

Al Wagner, AFC Computer Services; Debbie Walsh, American Federation of Teachers; Belinda Baxter Walsh, Procter & Gamble; Spider Webb, Tattoo Club of America; Monique Wegener, Lenders Bagel Baker; Richard H. Welsh, Jr., Cannon Mills; S.S. White Industrial Products, Pennwalt Corporation; Melvin T. Wilczynski, Lane Drug Company; Dr. Elizabeth Williams, Wyoming State Veterinary Laboratory; Dr. Jack Wilmore, University of Texas; Frank C. Wilson, American Orthopedic a.s.sociation; Donald W. Wilson, U.S. Ski Educational Foundation; Jerry Wiseman, Atlantic Gelatin; Dr. Robert M. Wold, College of Optometrists in Vision Development; Merry Wooten, Astronomical League; World Impex Bowling.

S.G. Yasinitsky, Orders and Medals Society of America.

Dr. E. Zander, Winthrop Consumer Products; Linda Zirbes, Hyatt Hotels Corporation; Jim Zuckerman, a.s.sociated Photographers International.

And to my sources who, for whatever reason, preferred to remain anonymous, thanks for your contribution.

Searchable Terms Aches, colds and Addresses and ZIP code, on envelopes Aerosol cans, shaking of Airlines cold rolls in meals of tickets, red carbons on Alcohol, in cough medicine Alphabet soup, letters in Apes, hair picking of Apples as gifts for teachers Arabic numbers Armpits, shaving of Army and Navy, Captain rank in Astronomy, telescopic images in ATMs and transaction costs Audio tape versus videotape, technology of Automobile gas gauges keys, ignition and door oil, grades of Bagels, holes in Bags under eyes Ball throwing, s.e.x differences and b.a.l.l.s on flagpoles b.a.l.l.s, tennis, fuzz and Banana peels as slipping agents Banking ATMs and hours Barns, red color of Baseball, circle next to batter's box in Bathtub drains, location of Batteries, sizes of Beards on turkeys Bibles, courtroom and Bird droppings, color of Birds jet lag and roosters crowing telephone wires and walking versus hopping Bleach, flour and Blind, money counting and the Blue ribbons (as first prize) Boots, ranchers' hanging of, on fence posts Bowling shoes, rented Bread kneading of yeast in Bubble gum, pink color of b.u.t.tons, arrangement of, on s.h.i.+rts Calories, measurement of Calves, cows and Cameras, black color of Captain, Navy and Army rank of Cartoon characters Donald Duck Goofy Mickey Mouse Cattle guards, effectiveness of Chalk, outlines of murder victims in Cheddar cheese, orange color of Cheese cheddar, color of string Chef's hat, purpose of Chickens, white and dark meat of Chocolate milk, consistency of Cigarettes, first puff of Cigars, new fathers and Civil War, commemoration of Clouds, location of Colds body aches and clogged nostrils and symptoms at night of Commercials, television, loudness of Corn silk, purpose of Cottage cheese Cotton in medicine bottles Cough medicine, alcohol in Courtrooms, bibles in Cows, calves and Cracks on sidewalks Crickets, chapped legs and Crowing of roosters Currency, color of Deodorant aerosols, shaking of Disney cartoon characters Donald Duck Goofy Mickey Mouse Dimples, facial Dimples on golf b.a.l.l.s Doctors, back tapping of Dogs, black lips of Donald Duck Double-yolk eggs Downhill ski poles, shape of Drains, location of bathtub Dreams, nap versus nighttime Driving on right side versus left side of road Dry cleaning French One Hour Martinizing E.

on eye charts as school grade Ears, hairy Earthworms as fish food Eggs double-yolk hard-boiled, discoloration of Elections, custom of voting on Tuesdays and English, driving habits of Escalators green lights on rail speed of Eye chart, E on Eyes bags under floaters and sneezing and Exclamation marks in telegrams Fathers, new, pa.s.sing out of cigars and Field goals, measurement of Film, countdown leader on Fingernails growth of lunula on Fish eating preferences of return to dried-up lakes and ponds sleep patterns of First cla.s.s mail, priority mail versus Flagpoles, b.a.l.l.s on Floaters in eyes Flour, bleached Flu, body aches and Football, yardage of kickers in Forks, switching hands to use French dry cleaning Gas gauges, automobile Gas pumps, shut off of Gauge, width of railroad Gelatin, fruit in Golf b.a.l.l.s, dimples on Goofy Grades in school Hairy ears in older men Half dollars, vending machines and Halibut, coloring of Hard-boiled eggs, discoloration of Hills, mountains versus Horses posture in fields shoes Hotels plastic circles on walls of toilet paper folding in bathrooms Hurricane, trees and Ice cubes, cloudy versus clear Irons, permanent press settings on Jell-O, fruit in Jet lag, birds and Juicy Fruit gum, flavors in Ketchup bottles, restaurants mating of Keys automobile to cities Kiwifruit in gelatin Kneading and bread Legal-size paper Letters in alphabet soup License plates on trucks Light bulbs fluorescent, stroking of loosening of in traffic signals Lips, black, on dogs Lunula, fingernails and Mail first cla.s.s versus priority translation of foreign Mail-order ads, six-to-eight week delivery promises of Manhole covers, round shape of Martinizing, One Hour Mayors, keys to cities and Medicine bottles, cotton in Memorial Day, Civil War Mickey Mouse, four fingers of Military salutes Minting of new coins, timing of Money, U.S.

color of stars on Monkeys, hair picking of Moon following cars Mountains, hills versus Murder scenes, chalk outlines at National Geographics, saving of Navy and Army, Captain rank of 9 as number to get outside line on telephones 98.6 degrees Fahrenheit as comfortable ambient temperature Noses, clogged nostrils and Nostrils, clogged Numbers, Arabic Oil, automotive, grades of Olive oil, virgin Olives, pitting of One Hour Martinizing Pain, effect of warmth upon Paper, legal-size PBX systems Pencils color of numbering of Pennies, vending machines and Periods in telegrams Permanent press settings on irons Permanents, pregnancy and Physical exams, back tapping and Pineapple in gelatin Plumbing, sound of running water and Poison ivy, grazing animals and Police dogs, urination and defecation of Popcorn, other corns versus Post office, translation of foreign mail and Potato skins Pregnancy, permanents and Priority mail, first cla.s.s versus Pubic hair, purpose of Punts, measurement of Queen-size sheets Railroads, width of standard gauges of Ranchers, hanging of boots on fence posts by Ribbons, blue Rice Krispies, noise of Roaches, death position of Rolls, coldness of airline Roman numerals, calculations with Roosters, crowing and Saloon doors in Old West Salutes, military Secretary as U.S. government department head designation Shaving of armpits Sheets, queen-size s.h.i.+rts b.u.t.ton arrangement of starch on Shoes, single, found on highways Sidewalks, cracks on Silos, shape of Ski poles, downhill Snack foods and prepricing "Snap! Crackle! and Pop!" of Rice Krispies Sneezing and eye closure Snow and cold weather Social security numbers Socks, angle of Sour cream, expiration date on Stamp pads and moisture retention Starch on s.h.i.+rts Stock prices as quoted in eighths of a dollar STOP in telegrams String cheese Sugar, clumping together of Summer, first day of Tall people, aging and Taste, sense of, in children versus adults Tattoos, color of Telegrams exclamation marks and periods and Telephones dialing 9 to get outside line holes in mouthpiece Telephone cords, twisting of Telescopes, inverted images of Tennis b.a.l.l.s and fuzz Television commercials, loudness of Throat, uvula, purpose of Throwing, s.e.x differences in Tickets, red carbons on airline Toasters, one slice slot on Toenails, growth of Toilet paper, folding over in hotel bathrooms Toilet seats in public restrooms Tongues, sticking out of Toothpicks, round versus flat Toques, purpose of Towels, smelly Traffic signal light bulbs Treasury, printing of new bills by Trucks, license plates on Tupperware and home parties Turkeys beards on white versus dark meat 20-20 vision Uvula, purpose of Vending machines half dollars and pennies and Videotape versus audio tape Virgin olive oil Vision Warmth, its effect on pain and Western Union exclamation marks and periods and Whistling at sporting events Winter, first day of Worms as fish food Yawning, contagiousness of Yeast in bread Yellow Pages, advertis.e.m.e.nts in ZIP code, addresses on envelopes and Master Index of Imponderability Following is a complete index of all ten Imponderables books and Who Put the b.u.t.ter in b.u.t.terfly? The bold number before the colon indicates the book t.i.tle (see the t.i.tle Key below); the numbers that follow the colon are the page numbers. Simple as that.

About the Author.

DAVID FELDMAN is the author of the Imponderables series, as well as Who Put the b.u.t.ter in b.u.t.terfly? and How to Win at Just About Everything. He has a master's degree in popular culture from Bowling Green State University in Ohio and consults and lectures on the media. He lives in New York City.

More Imponderables available from HarperCollins Publishers.

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ALSO BY DAVID FELDMAN.

Do Elephants Jump?

How Do Astronauts Scratch an Itch?

What Are Hyenas Laughing at, Anyway?

How to Win at Just About Anything How Does Aspirin Find a Headache?

Are Lobsters Ambidextrous?

(Originally published as When Did Wild Poodles Roam the Earth?) Do Penguins Have Knees?

Why Do Dogs Have Wet Noses?

Who Put the b.u.t.ter in b.u.t.terfly?

Why Do Clocks Run Clockwise?

Why Don't Cats Like to Swim?

(Originally published as Imponderables).