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How Is a $1 Bill Made?
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How Old Are Fairy Tales?
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Why Are Flamingos Pink?
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How Can Spare Change Make a Big Difference?
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What Is a One-Hit Wonder?
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Does Music Help You With Math?
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What Is Presidents’ Day?
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How Will Future Astronauts Travel To Outer Space?
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Why Do Some Years Leap Ahead?
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What Is the Vernal Equinox?
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Where Is the Coldest Place on Earth?
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How Tall Is the Washington Monument?
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What’s Your Favorite Kind of Chocolate?
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Are Footballs Really Made Of Pigskin?
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Can You Count on the Census?
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What Is a Prime Number?
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Who Is the Unknown Soldier?
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What Is Pole Position?
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How Many Is a Googol?
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Is a Gob More Than a Smidgen?