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Why Does Hair Turn Gray?
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What is COVID-19?
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What Are the 12 Days of Christmas?
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What Will the COVID-19 Vaccines Do?
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Where in the World Is Kolkata?
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What Would You Pack for a Trip to Outer Space?
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Why Do Birds Fly in a V?
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Who Came Up With Chewing Gum?
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Who Created Frozen Pizza?
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How Far Can a Paper Airplane Fly?
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Who Was St. Nick?
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What Is a Prime Number?
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Who Was Patsy Mink?
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Why Should We Remember the Alamo?
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Who Owns the Smallest House?
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Where Is the Largest Library in the United States?
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Who Was Rosalind Franklin?
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Who Are the Rockettes?
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Why Is Dusk Mysterious?
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How Many Is a Googol?