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Who Was Dr. Martin Luther King, Jr.?
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Who Invented the Unicycle?
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Who Invented the Alphabet?
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Who Invented the Kite?
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Is the Sky Falling?
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Why Is 2011 the Year Of the Rabbit?
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Why Doesn't Glue Stick To the Inside Of the Bottle?
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How Did the Months of the Year Get Their Names?
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How Does the Internet Work?
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Who Invented the Cowboy Hat?
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What Was the Underground Railroad?
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Where Is the Tallest Waterfall?
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What Does the Moon Do?
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What Is the President’s Challenge?
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Who Made the American Flag?
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Who Takes the Longest Nap?
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How Hot Is the Sun?
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Why Is the Grass Wet In the Morning?
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Where Is the Highest Mountain?
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Who Is the Unknown Soldier?