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Do You Think 13 Is Unlucky?
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Who Invented the Candy Bar?
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Have You Ever Been to a Bar Mitzvah?
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What Is a Prime Number?
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How Many Donuts Are in a Baker’s Dozen?
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What Were the Original Thirteen Colonies?
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Do Hummingbirds Really Hum?
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What Does "Top Secret" Mean?
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Why Are There Twelve Grades of School?
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How Much Does an Elephant Weigh?
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Why Do Cicadas Emerge Every 17 Years?
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Who Made the American Flag?
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When Is Your Half Birthday?
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Who Was Guy Fawkes?
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What Makes Bloodhounds Good Detectives?
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Is It Bad Luck to Open an Umbrella Indoors?
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Who Was Hans Christian Andersen?
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Where in the World Is Turkey?
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Where’s the Best Tree House?
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Who Invented the Cowboy Hat?
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