Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
A portion of the water you drink has already been drunk by someone else, maybe several times over.
170
The WD in WD-40 stands for Water Displacer.
30
You burn 26 calories in a one minute kiss.
605
To get a song out of your head, try doing something like a puzzle or Sudoku.
13
A quarter has 119 grooves on its edge, a dime has one less groove!
34
Approximately 60% of the water used by households during the summer is used for watering flowers and lawns.
79
There are approximately three million shipwrecks on the ocean floor, worth billions in value and treasure.
22