- You can't reach your elbow with your tongue
- You can't break a rib while pressing your legs to your chest
- A pig can never see the sky
- 25% of the population of the earth has never used a telephone
- A hedgehog can live 6 hours without its head
- A person exhales so much poisonous gasses in 7 years that you can die from suffocation in a closed room
- The sounds that a duck makes do not make an echo
- 11% of copying machines which are out of order, have been damaged by people sitting on them so that they can copy parts of their body
- An average person accidentally swallows 70 insects in the course of his/her life
- Cat urine glows when illuminated by ultraviolet rays
- Tongue-prints are as individual as fingerprints.
- 80% of the people who read this text tried to touch their elbow with their tongue in the beginning
Disclamer: I have not tried or tested any of the above (except the bit with the tongue and elbow