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Who Was Cleopatra?
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How Is a $1 Bill Made?
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Why Are Flamingos Pink?
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Why Do Pirates Say “Arrr!”?
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Who Was Pauli Murray?
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Who Was Jacques Cousteau?
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Who Was Stephen Sondheim?
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Why Are Pandas Rare?
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How Did Helicoprions Use Their Teeth?
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Who Invented Numbers?
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What Is a One-Hit Wonder?
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Can It Snow When It’s Not Cold?
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When Was the Vietnam War?
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Who Was Mother Teresa?
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Who Was Billy the Kid?
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How Do Streets Get Their Names?
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Can You Solve the Fermi Paradox?
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How Do You Connect the Dots?
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Who Was Arthur Ashe?
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Where Is the 38th Parallel?