There are 170,000,000,000,000,000,000,000,000 ways to play the ten opening moves in a game of chess.
266
At the time of your birth, you were, for a few seconds, the youngest person on the planet.
30
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
Approximately 60% of the water used by households during the summer is used for watering flowers and lawns.
79
"Big Ben" in London isn't a tower, the bell inside the tower is called "Big Ben", the tower itself is called "The Elizabeth Tower".
18