1.Banging your head against a wall burns 150 calories an hour.
2.Move trailers were originally shown after the movie, which is why they were called "trailers"
3.There is a species of spider called the Hobo Spider.
4.Heart attacks are more likely to happen on a Monday.
5.During your lifetime, you will produce enough saliva to fill two swimming pools.
6.There are more lifeforms living on your skin than there are people on the planet.
7.OJ Simpson was originally cast to play Terminator, but the studio was afraid that no one would buy him as a remorseless killer.
8.Leonardo da Vinci could write with one hand and draw with the other at the same time.
9.In the 1960s, the CIA tried to spy on the Kremlin and Russian embassies by turning cats into listening devices. The program, called Acoustic Kitty, involved surgically implanting batteries, microphones and antennae inside cats.
10.A traffic jam lasted lasted for more than 10 days, with cars only moving 0.6 miles a day.
11.The Titanic was the first ship to use the SOS signal.
12.Facebook, Skype and Twitter are all banned in China.
13.Russia didn't consider beer to be alcohol until 2011. It was previously classified as a soft drink.
14.The Woolly Mammoth was around when the Egyptian Pyramids were being built.
15.The French language has seventeen different words for "surrender".
Funny things who didn't knew it. :) Wish you a nice day.
Stay positive, enjoy life.