Coins usually survive in circulation for about 30 years.
66
Since 1982, a radio frequency emanating from Russia has been broadcasting a buzzer-like sound and, periodically, an unknown voice reads orders, names, and numbers. No one knows where exactly it is coming from or what it means.
13
It's impossible to kill yourself by holding your breath.
703
If you took a standard slinky and stretched it out it would measure 87 feet.
52
"Dysania" is the state of finding it hard getting up out of bed in the morning.
33
The number of births that occur in India each year is higher than the entire population of Australia.
66
No matter its size or thickness, no piece of paper can be folded in half more than 8 times.
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