"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
The human eye blinks an average of 4,200,000 times a year.
233
There are 170,000,000,000,000,000,000,000,000 ways to play the ten opening moves in a game of chess.
266
The search engine Google got its name from the word 'googol', which refers to the number one with a hundred zeros after it.
56
Not swinging your arms when you walk increases the effort of walking by 12%, the equivalent of walking 20% faster or carrying a 10 kg backpack.
12
A jiffy is an actual unit of time for 1/100th of a second. Thus the saying, I will be there in a jiffy.
57
Standard paper cannot be folded in half more than 7 times.
232
Blue eyes are the most sensitive to light, dark brown the least sensitive.
105