The water between India and Sri Lanka is only 3-30 feet deep and was purportedly passable on foot until 1480 AD when a cyclone moved some sand around.
1
More than 25% of the world's forests are in Siberia.
51
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18