There is a Swedish religion called Kopimism whose sole tenet is that all knowledge should be available to everyone - and thus, using CTRL+C and CTRL+V are sacred acts.
2
The Basenji dog is the only dog that is not able to bark.
4
During the Black Plague, it was thought that bad smells were the cause of the plague. "Plague Doctors" therefore wore masks with long beak-like noses stuffed with flowers or smoke to hide the smells.
19
God is the only Simpsons character to have five fingers on each hand.
10