When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
The best time for a person to buy shoes is in the afternoon. This is because the foot tends to swell a bit around this time.
49
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 number of text messages sent and received in a given day is greater than the world's population.
198
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
No matter its size or thickness, no piece of paper can be folded in half more than 8 times.
-64
Passengers on the Beijing subway can pay with plastic bottles.
29
There is one slot machine in Las Vegas for every eight inhabitants.
58