It's impossible to kill yourself by holding your breath.
703
Coins usually survive in circulation for about 30 years.
66
Chrysler built B-29's that bombed Japan, Mitsubishi built Zeros that tried to shoot them down. Both companies now build cars in a joint plant called Diamond Star.
29
Ice isn't slippery. What makes people and things slip on ice is water. A thin layer of ice melts when pressure is applied to it and it is this wet layer on top of the ice that is slippery.
153
The longest Monopoly game in history lasted 70 straight days.
124
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
29
A pipe 2 feet in diameter will allow four times more fluid to pass through it than a pipe 1 foot in diameter.
20