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Can You Garden in the City?
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What Is a Prime Number?
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Who Was Saint Patrick?
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What Is a Haiku?
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What Is a Random Act of Kindness?
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What Are Wisdom Teeth?
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What Is a Spit Valve?
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Who Is Uncle Sam?
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Where Does French Toast Come From?
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Can You Escape From Handcuffs?
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When Were Ice Skates Invented?
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Why Does a Strawberry Have Seeds On the Outside?
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How Do Mood Rings Work?
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How Can You Pay It Forward?
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How Old Are Fairy Tales?
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Who Was Lou Castro?
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What Is an Iceberg?
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How Deep Is the Grand Canyon?
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Can You Count on the Census?
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Who Was the Most Famous Female Aviator?