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What Is a Decade?
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What Do B.C. and A.D. Stand For?
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What Is the Birthday Paradox?
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Why Are There Seven Days in a Week?
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Have You Ever Been on a Diet?
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Why Don’t All Months Have the Same Number of Days?
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When Did the New Year’s Eve Ball First Drop in Times Square?
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Why Is Thanksgiving Always on a Thursday?
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How Fast Is the Speed of Light?
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What Keeps the Ocean from Draining Through the Sand?
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How Were Birthstones Chosen for Each Month?
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Is It Bad Luck to Open an Umbrella Indoors?
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Why Do the Seasons Change?
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Who Invented Time?
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How Many Sophomores Do You Know?
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When Is Your Half Birthday?
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How Long Is a Dog Year?
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Why Do Some Years Leap Ahead?
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How Many Seconds Are In a Year?
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Did Father Time Have Children?
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