Only about 2% of the world population has green eyes.
36
A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
94
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