Water is actually naturally blue.
48
Passengers on the Beijing subway can pay with plastic bottles.
29
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
On average people fear spiders more than they do death.
447
The Gate Tower Building skyscraper in Japan has a highway passing through its fifth, sixth and seventh floors.
7
The oldest living person smoked cigarettes from the age of 21 to 117.
13
Couples' personalities converge over time to make partners more and more similar.
235