You can alleviate a tickly throat by scratching your ear.
9
The four ghosts in Pac-Man are programmed to act differently: red chases you, pink just tries to position itself in a set way, blue tries to ambush you and orange is random.
21
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Penguins have a gland above their eye that turns saltwater into freshwater.
12
The word 'mortgage' comes from a French law term that means 'death pledge'.
14
Scientists have developed a 'hangover-free' beer that has electrolytes, making it more hydrating and refreshing.
4
Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
2