Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
Some nursing homes in Germany have fake bus stops to keep Alzheimer's patients from wandering away.
14
In the White House, there are 13,092 knives, forks and spoons!
51
An olive tree can live up to 1,500 years!
58
Couples' personalities converge over time to make partners more and more similar.
235
If you flip a coin ten times, the odds against its coming up with the same side showing each time are 1,023 to 1.
39
Any domino can knock over another object up to 1.5x its size. The 32nd object would be big enough to knock over the Empire State Building.
18
The chances of making two holes-in-one in a round of golf are one in 67 million.
67