Between 2007 and 2012, Bill Gates gave away $28 billion; saving 6 million lives.
34
Raj from the Big Bang Theory is married to Miss India.
11
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Leonardo da Vinci could write with one hand and draw with the other at the same time.
56
Elephants are among the most emotional creatures in the world - they have even been known to rescue other animals, such as trapped dogs.
25
Billions of neutrinos pass unnoticed through your body every second.
6