The most expensive license plate is the number '1', bought by an Abu Dhabi businessman - costing a staggering $14.3 million!
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In many countries, urine was used as a detergent for washing.
17
The chills you sometimes feel when listening to music is called "musical frisson."
18
There are 293 ways to make change for a dollar.
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You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
A pipe 2 feet in diameter will allow four times more fluid to pass through it than a pipe 1 foot in diameter.
20
Mushrooms are more closely related to humans than they are to plants.
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