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What Is a Prime Number?
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How Is a $1 Bill Made?
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What Are the 12 Days of Christmas?
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What Bedtime Story Would You Tell?
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What Causes a Shooting Star?
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Who Invented Socks?
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Why Are Flamingos Pink?
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Who Came Up With Chewing Gum?
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Why Do Bananas Bruise?
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Why Is April 11, 1954, the Most Boring Day in History?
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Why Do Some Years Leap Ahead?
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Who Was the First Person in Space?
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When Did the New Year’s Eve Ball First Drop in Times Square?
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Where Is Malaysia Airlines Flight 370?
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How Many Seconds Are In a Year?
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How Does the Binary System Work?
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Who Invented Numbers?
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What Is a One-Hit Wonder?
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How Tall Is the Washington Monument?
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How Did the Months of the Year Get Their Names?