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Why? : over 1,111 anwers to everything
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Why spacemen can't burp
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Bed time math. The truth comes out
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Totally random questions. Volume 6 : 101 fascinating and factual Q & As
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Totally random questions. Volume 7 : 101 wondrous and wacky Q & As
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Totally random questions. Volume 8 : 101 outlandish and amazing Q & As
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Totally random questions. Volume 4, 101 bizarre and cool Q & As
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Totally random questions. Volume 1, 101 wild and weird Q&As
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Totally random questions. Volume 5 : 101 incredible and intriguing Q & As
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Totally random questions. Volume 3, 101 strange and stupendous Q & As
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The handy answer book for kids (and parents)
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First big book of why
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Peculiar questions and practical answers : a little book of whimsy and wisdom from the files of the New York Public Library
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Do penguins have knees? : an Imponderables book
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When do fish sleep? and other imponderables of everyday life
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Totally random questions. Volume 2, 101 odd and awesome Q & As
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Quiz whiz : 1,000 super-fun mind-bending totally awesome trivia questions
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How does aspirin find a headache? : an imponderables book
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Because I said so! [LP] : the truth behind the myths, tales, and warnings every generation passes down to its kids
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Because I said so! : the truth behind the myths, tales and warnings every generation passes down to its kids
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Weird but true! 5 : 300 outrageous facts
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The ultimate book of pub trivia by the smartest guy in the bar : over 300 rounds and more than 3,000 questions
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Elmo asks why : a first encyclopedia for growing minds
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Don't know much about anything
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Weird history 101
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Great mysteries of the past : experts unravel fact and fallacy behind the headlines of history
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Unexplained! : 347 strange sightings, incredible occurrences, and puzzling physical phenomena
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How does aspirin find a headache? : an imponderables book
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Fugitives & refugees : a walk in Portland, Oregon
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Wonders of the world
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The Atlas of mysterious places : the world's unexplained sacred sites, symbolic landscapes, ancient cities, and lost lands
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Strange stories, amazing facts : stories that are bizarre, unusual, odd, astonishing, and often incredible
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How in the world?
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National Geographic kids almanac, 2011
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100 things you should know about world wonders
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Weird & wonderful
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Simply unbelievable
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Ripley's believe it or not! : special edition 2010
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Weird animal sports
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The seventy wonders of the ancient world : the great monuments and how they were built
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The Guinness book of records 1492 : the world five hundred years ago
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Weird Pennsylvania : your travel guide to Pennsylvania's local legends and best kept secrets
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Flight behavior : a novel
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Weird science : mad marvels from the way-out world
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Flight behavior [LP] : a novel
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Ultimate weird but true
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Olivia Bean, trivia queen : a novel
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National Geographic Kids almanac 2013
