J.K. Rowling became the first person to become a billionaire by writing books. However, she also lost her billionaire status because she donated so much money to charity!
The first pair of Nike running shoes was made in a waffle iron.
One area of Canada has a weaker gravitational pull than the rest of Earth.
Great white sharks are so scared of killer whales that they'll avoid an area for up to a year after spotting one.