Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
A typical lead pencil can draw a line that is 35 miles long.
158
It would take more than 150 years to drive a car to the sun.
569
You can't tickle yourself.
29
To get a song out of your head, try doing something like a puzzle or Sudoku.
13
Déjà vu occurs when your brain tries to apply a memory of a past situation to your current one, fails, and makes you feel like it's happened.
12
By peeing in the shower, you can save 1,157 gallons of water a year.
31
The world’s smallest book, “Teeny Ted from Turnip Town”, is 100×70 micrometers in size and requires a scanning electron microscope to read, as light beams are too large.
6