20 of the Most Interesting Facts from QI
6. The founder of match.com, Gary Kremen, lost his girlfriend to a man she met on match.com.
7. Octopuses have three hearts.
8. Nelson Mandela was not removed from the US terror watch list until 2008.
9. Manchester United is the most hated brand in Britain and the seventh most hated in the world.
10. The second man to go over Niagara Falls in a barrel, Bobby Leach, survived the fall but later died as a result of slipping on a piece of orange peel.