Your thumb is about the same size as your nose.
124
Only about 2% of the world population has green eyes.
36
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
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
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