What are the coolest facts to know?

1. It is impossible to lick your elbow (busted)
2. A shrimp’s heart is in its head.
3. A crocodile can’t stick its tongue out.
4. People say “Bless you” when you sneeze because when you sneeze, your heart stops for a millisecond.
5. It is physically impossible for pigs to look up into the sky.
6. If you keep your eyes open by force when you sneeze, you might pop an eyeball out.
7. Wearing headphones for just an hour will increase the bacteria in your ear by 900 times.
8. Like fingerprints, everyone’s tongue print is different.
9. Tea is said to have been discovered in 2737 BC by a Chinese emperor when some tea leaves accidentally blew into a pot of boiling water. The tea bag was introduced in 1908 by Thomas Sullivan of New York.
10. You can tell the sex of a horse by its teeth. Most males have 40, females have 36.
11. Chewing gum while peeling onions will keep you from crying!
12. Of all the words in the English language, the word ’set’ has the most definitions!
13. You can’t kill yourself by holding your breath
14. Human thigh bones are stronger than concrete.
15. An egg looks like a crazy jellyfish underwater
16. This is how a face forms in the womb.

17. The longest time between two twins being born is 87 days.
18. In 1567, the man said to have the longest beard in the world died after he tripped over his beard while running away from a fire accident.
19. The Dutch village of Giethoorn has no roads; its buildings are connected entirely by canals and footbridges.
20. There’s an opera house on the U.S.–Canada border where the stage is in one country and half the audience in another.
21. Leonardo da Vinci could write with one hand and draw with the other at the same time.
22. Otters sleep holding hands.
23. There are more than 200 corpses on Mt. Everest… climbers use them as way points.
24. Adjusted for inflation, John D. Rockefeller net worth was 10 times more than Bill Gates.
25. Russia didn’t consider beer as alcohol until 2011. Until then it was considered as a soft drink…
26. Two thirds of people on Earth have never seen snow… (are you one of them??)
27. There are more vacant houses in the US than homeless people…
28. If you try to suppress a sneeze… you can rupture a blood vessel in your head or neck and … ya DIE!!
29. The average person walks the equivalent of three times around the world in a lifetime.
30. It would take over 1,000 years to watch every video on YouTube.

Source: Hamna Younis Bhutta, QUORA