'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
The longest Monopoly game in history lasted 70 straight days.
124
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
It takes about 63,000 trees to make the newsprint for the average Sunday edition of The New York Times.
-11
Bullet proof vests, fire escapes, windshield wipers, and laser printers were all invented by women.
1k
Less than 3% of the water produced at a large municipal water treatment plant is used for drinking purposes!
24
Standard paper cannot be folded in half more than 7 times.
232
If you get water flowing fast enough, it can cut metal.
354