The 'save' icon on Microsoft Word shows a floppy disk, with the shutter on backwards. See more

Those stars and colours you see when you rub your eyes are called phosphenes. See more

Banging your head against a wall uses 150 calories an hour. See more

The catfish has over 27,000 taste buds, that makes the catfish rank #1 for animal having the most taste buds. See more

Male lions can sleep for up to 20 hours a day. See more

"Dreamt" is the only English word that ends in the letters "mt". See more

A rat can fall from a five story building without injury. See more

A crocodile's tongue is attached to the roof of its mouth and he cannot move it. See more

Plants that are not cared for will cry for help, a thirsty plant will make a high-pitched sound that is too high for us to hear. See more

There are 100 million internet users in China. Some of the sites they can't access are BBC news, Amnesty International and Dalailama.com. See more

A single individual, Dr. Lieven P. Van Neste, owns over 200,000 domain names! See more

You use over 70 muscles to say one word. See more

America puts many more of its citizens in prison than any other nation. See more

In Switzerland, it's against the law to slam your car door. See more

Heroin used to be a cough medicine for children. A German company (Bayer) registered heroin as a trademark. See more

The Chinese ideogram for 'trouble' depicts two women living under one roof'. I wonder why ;-). See more