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How Did the Pretzel Get Its Shape?
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What Is the NAACP?
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What is the Grito de Dolores?
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Where Is the Oort Cloud?
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Who Is the Wisest Bird?
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Which Bird Flies the Fastest?
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How Strong Is a Horse?
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How Can You Make Earth a Better Place?
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Where Is the Highest Mountain?
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How Hot Is the World’s Hottest Pepper?
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How Many People Are on Earth?
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How Many Stars Are In the Universe?
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Where Is the Milky Way?
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Why Do Some People Need Glasses?
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Who Is the Fastest Swimmer?
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What Are LEDs?
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What Was the War of 1812?
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Who Was the One-Eyed Queen Who Defeated Caesar?
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What Are Phytoplankton?
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How Are Wax Figures Made?