Your brain is 80% water.
525
Cold water weighs more than hot water.
93
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
The average home creates more pollution than does the average car.
33