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Why Do Catfish Have Whiskers?
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Where Is the 38th Parallel?
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Where Is the World’s Largest Cave?
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Where Is the Hundred Acre Wood?
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What Is Mercury?
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Who Wrote “Rock-A-Bye Baby”?
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Who Was the One-Eyed Queen Who Defeated Caesar?
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Do Black Cats Bring Bad Luck?
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Who Was W. E. B. Du Bois?
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Have You Ever Been to a Bar Mitzvah?
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Can a Strait Be Crooked?
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What Is the Space-Time Continuum?
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Who Was the First Female and American Indian Engineer?
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Where Do Last Names Come From?
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Who Was Eddie Van Halen?
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What Is Fermat's Last Theorem?
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Who Was Cleopatra?
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What Is AIDS?
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What is a Ghost Ship?
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What Was the Babington Plot?