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

To "testify" was based on men in the Roman court swearing to a statement made by swearing on their testicles. See more

Former enemies, America and Russia now have a great deal in common - they both lead the world in locking people up. See more

Women blink nearly twice as much as men. See more

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

The most common name in the world is Mohammed. See more

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

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

If a surgeon in Ancient Egypt lost a patient while performing an operation, his hands were cut off. See more

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

The heart beats about 100,000 times each day. See more

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

25% of women think money makes a man sexier. See more

The longest recorded flight of a chicken is 13 seconds. See more

The electric chair was invented by a dentist. See more