Nachos were actually invented by a guy named Nacho. Happy Nacho Day!
13
Your spit has a painkiller 6 times stronger than morphine. It contains a substance called opiorphin that is stronger than morphine.
39
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Between 2007 and 2012, Bill Gates gave away $28 billion; saving 6 million lives.
34
By weight, Bone is five times stronger than steel.
417