If you have 1 billion dollars and spend $1,000 every day, it would take you 2,740 years to go broke.
31
Passengers on the Beijing subway can pay with plastic bottles.
29
A pipe 2 feet in diameter will allow four times more fluid to pass through it than a pipe 1 foot in diameter.
20
The average cough comes out of your mouth at 60 miles per hour.
126
By peeing in the shower, you can save 1,157 gallons of water a year.
31
Daydreamers are better at solving complex problems.
28
If left alone, 70% of birthmarks gradually fade away.
193

