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How Do You Unlock a Secret Code?
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Who Was the First Female and American Indian Engineer?
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Who Were the Tuskegee Airmen?
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How Many Languages Are Spoken At the U.N.?
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Who Came Up With Chewing Gum?
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Why Do We Change the Clocks Twice a Year?
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Are All Diaries Secret?
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When Were Ice Skates Invented?
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Where Was the Mother Road?
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Why Was Morse Code Invented?
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Why Do You Say "Trick or Treat"?
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What Is Four-Wheel Drive?
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How Do You Show Resilience?
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Who Was Jacob Lawrence?
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Who Painted the Sistine Chapel?
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Who Invented Dental Floss?
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Do Jitterbugs Bite?
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Who Is Uncle Sam?
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Where Can Moss Grow?
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What Is Veterans Day?
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