The "Cobra Effect" is where a solution for a problem actually makes the problem worse.
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In an average hour, there are over 61,000 Americans airborne over the United States.
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The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
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The WD in WD-40 stands for Water Displacer.
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The harder you concentrate on falling asleep, the less likely you are to fall asleep.
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The French named one of their aircraft carriers after Ferdinand Foch, a man who once said "Airplanes are interesting toys but of no military value".
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When withdrawing money from an ATM, the 'whirring' sound before your money pops out is actually a recording. The actual mechanism is so far back that you can't hear it.
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There are 635,013,559,599 possible hands in a game of bridge.
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