In many countries, urine was used as a detergent for washing.
17
Real diamonds do not show up on x-ray.
36
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34
There are more nerve cells in the human brain than there are stars in the Milky Way.
349
85% of all Valentine's Day cards are purchased by women!
38
Only 8% of the world’s currency is physical money. The rest exists only on computers.
20
On average, a disposable diaper can hold up to 7 pounds of liquid.
22
Donkeys kill more people annually than plane crashes.
927