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How Do Fangs Work?
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What Is the Birthday Paradox?
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Why Do Some Years Leap Ahead?
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Why Are There Seven Days in a Week?
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Can Animals Tell the Future?
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How Many Steps Does Chichén Itzá Have?
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What Are the New Seven Wonders of the World?
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How Did the Teddy Bear Get Its Name?
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Who Invented Numbers?
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Who Is the Fastest Female Runner in the World?
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Who Was Shirley Chisholm?
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How Many Seconds Are In a Year?
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How Kooky Are Cuckoo Clocks?
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Who Discovered Penicillin?
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What Is a Metaphor?
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Who Invented Time?
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How Do You Make Oobleck?
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Who Are the Rockettes?
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Who Was Dalip Singh Saund?
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How Long Is a Dog Year?