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What color is a giraffe’s tongue?

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What animal sleeps for up to 20 hours a day?

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What makes Roman concrete stronger over time?

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What was bubble wrap originally invented for?

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Which medical device was invented by accident?

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What ancient civilization invented soap?

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Which board game was originally invented to teach about the dangers of capitalism?

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Why do pretzels have that twisted shape?

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Which novel was written on napkins?

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What kitchen appliance was inspired by bird beaks?

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What surprising material was used to make the first bulletproof vest?

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Which Era Prompted The 14th Amendment’s Ratification?

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