Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
People spend about two weeks of their lives at traffic lights!
159
The oldest living person smoked cigarettes from the age of 21 to 117.
13
'X' became symbolic for a kiss because in the middle ages when alot of people were illiterate and they used to sign documents with an X and then kiss it for sincerity.
255
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
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