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Why Do Some Eggs Have Two Yolks?
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How Does a Key Card Unlock a Door?
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Did Anyone Ever Escape from Alcatraz?
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How Do Locks Work?
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How Does an Engine Work?
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What Was the War of 1812?
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What Is QWERTY?
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Is a Gob More Than a Smidgen?
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Where Is Malaysia Airlines Flight 370?
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How Was the St. Louis Arch Built?
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Why Do Pianos Have 88 Keys?
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Who Wrote the National Anthem?
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What Is a Prime Number?
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How Do You Listen to Music?
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Where Is Cuba?
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What Is a Spit Valve?
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Why Did They Put the Alphabet in Math?
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How Did the Months of the Year Get Their Names?
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How Do You Play the Piano?
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Did a Cow Start the Great Chicago Fire?