The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
94
Only about 2% of the world population has green eyes.
36
Your body is creating and killing about 2.4 million red blood cells per second.
17
The largest breed of rabbit is the Flemish Giant.
65
If you have 1 billion dollars and spend $1,000 every day, it would take you 2,740 years to go broke.
31