Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
The best diamonds are colored blue-white.
80
A pipe 2 feet in diameter will allow four times more fluid to pass through it than a pipe 1 foot in diameter.
20
Any domino can knock over another object up to 1.5x its size. The 32nd object would be big enough to knock over the Empire State Building.
18
Most lipstick contains fish scales!
46
The best time for a person to buy shoes is in the afternoon. This is because the foot tends to swell a bit around this time.
49
American car horns beep in the tone of F.
66
There are 53 Lego bricks manufactured for each person in the world.
83