The full moon causes a tidal wave to roll up the Amazon river once in day and once in night for a period of only three weeks in a year. This results in continuous 4m high wave that can be surfed for up to 13km.
14
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34
Fine-grained volcanic ash can be found as an ingredient in some toothpastes.
55
The symbol on the 'pound' key (#) is called an octothorpe.
82
The mile is Latin for 1,000. The number of paces it took the average Roman!
36
At the time of your birth, you were, for a few seconds, the youngest person on the planet.
30
Donkeys kill more people annually than plane crashes.
927
The ashes of the average cremated person weigh nine pounds.
40