The lion that roars in the MGM logo is named Volney.
Switching letters is called spoonerism. For example, saying jag of Flapan, instead of flag of Japan.
The attachment of the human skin to muscles is what causes dimples.
The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
It takes about 20 seconds for a red blood cell to circle the whole body.
The plastic things on the end of shoelaces are called aglets.
Most soccer players run 7 miles in a game.
The only part of the body that has no blood supply is the cornea in the eye. It takes in oxygen directly from the air.
In most watch advertisements the time displayed on the watch is 10:10 because then the arms frame the brand of the watch (and make it look like it is smiling).