You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
19
The Gate Tower Building skyscraper in Japan has a highway passing through its fifth, sixth and seventh floors.
7
If you took a standard slinky and stretched it out it would measure 87 feet.
52
One in five long-term love relationships began with one or both partners being involved with others.
177
Any domino can knock over another object up to 1.5x its size. The 32nd object would be big enough to knock over the Empire State Building.
18
The most common name in the world is Mohammed.
213
