Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
A million dollars weighs about a metric ton. Hence the expression "a ton of money."
66
A quarter has 119 grooves on its edge, a dime has one less groove!
34
Real diamonds do not show up on x-ray.
36
‘Qatar’ is the world's most expensive bar of soap. Infused with gold and diamond powder, it costs a squeaky clean $2,800.
18
Kilts are not native to Scotland. They originated in France.
57
"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
By peeing in the shower, you can save 1,157 gallons of water a year.
31