To get a song out of your head, try doing something like a puzzle or Sudoku.
13
You share your birthday with at least 9 million other people in the world.
205
Sunflowers can be used to clean up radioactive waste.
17
A portion of the water you drink has already been drunk by someone else, maybe several times over.
170
The number of births that occur in India each year is higher than the entire population of Australia.
66
Stilts were invented by French shepherds who needed a way to get around in wet marshes.
45
160 cars can drive side by side on the Monumental Axis in Brazil, the world's widest road.
39
Bullet proof vests, fire escapes, windshield wipers, and laser printers were all invented by women.
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