Your fingernails grow faster in summer.
744
The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
244
To get a song out of your head, try doing something like a puzzle or Sudoku.
13
Like fingerprints, everyone's tongue print is different.
250
A typical full-time worker in the US with a four-year college degree earns about $50,000. This is 62% more than a worker with only a high-school diploma.
72
You can immediately cool down a car that has been sitting under the sun by rolling down the window on one side and opening-closing the door on the other side 5-6 times.
23
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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