On average, the life span of an American dollar bill is eighteen months.
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Coins usually survive in circulation for about 30 years.
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A million dollars' worth of $100 bills weighs only 22 pounds!
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Your fingernails grow faster in summer.
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The worlds oldest piece of chewing gum is over 9000 years old!
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The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
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Déjà vu occurs when your brain tries to apply a memory of a past situation to your current one, fails, and makes you feel like it's happened.
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