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Who Was the Most Famous Female Aviator?
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Who Were the Wright Brothers?
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What Is a Prime Number?
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Is a Computer Bug an Insect?
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How Were Birthstones Chosen for Each Month?
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Do You Like Pineapple on Your Pizza?
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Is the Leaning Tower of Pisa Falling?
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What Is a Spit Valve?
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Who Is Uncle Sam?
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How Do Mood Rings Work?