'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.
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Wearing red increases attraction.
30
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
An olive tree can live up to 1,500 years!
58
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
It's impossible to kill yourself by holding your breath.
703
Less than 3% of the water produced at a large municipal water treatment plant is used for drinking purposes!
24
By peeing in the shower, you can save 1,157 gallons of water a year.
31