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
Oak trees can live 200 or more years.
61
In 21 U.S. states, WALMART is the single largest employer.
13
There are more than 10 million bricks in the Empire State Building!
75
There was once an undersea post office in the Bahamas.
241
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
Paper money is not made from wood pulp but from cotton. This means that it will not disintegrate as fast if it is put in the laundry.
37
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34