1) The fingerprints of koalas are so similar to humans that they have been mistaken at crime scenes.

2) J.K. Rowling's "Harry Potter" series of books has sold over 500 million copies worldwide and has been translated into 80 languages.

3) The International Cricket Council (ICC) is the governing body for the sport of cricket and oversees international tournaments and rankings.

4) The concept of gravity was famously described by Sir Isaac Newton after an apple fell on his head.