At 90 degrees below zero, your breath will freeze in mid-air and fall to the ground.
25
The symbol on the 'pound' key (#) is called an octothorpe.
82
If you're one in a million, there are about 7,234 people just like you.
31
People spend about two weeks of their lives at traffic lights!
159
160 cars can drive side by side on the Monumental Axis in Brazil, the world's widest road.
39
The chills you sometimes feel when listening to music is called "musical frisson."
18
To get a song out of your head, try doing something like a puzzle or Sudoku.
13
In many countries, urine was used as a detergent for washing.
17