The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
244
Blue eyes are the most sensitive to light, dark brown the least sensitive.
105
A portion of the water you drink has already been drunk by someone else, maybe several times over.
170
The higher someone’s I.Q. the more likely they are to be sleep deprived.
29
There are 2,500,000 rivets in the Eiffel Tower.
98
"Big Ben" in London isn't a tower, the bell inside the tower is called "Big Ben", the tower itself is called "The Elizabeth Tower".
18
Standard paper cannot be folded in half more than 7 times.
232
22% leave the glob of toothpaste in the sink.
118