The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
244
If the human eye was a digital camera, it would have 576 megapixels.
25
Donkeys kill more people annually than plane crashes.
927
A typical lead pencil can draw a line that is 35 miles long.
158
Hong Kong has more Rolls Royces per person than anywhere else in the world.
32
Fine-grained volcanic ash can be found as an ingredient in some toothpastes.
55
On average people fear spiders more than they do death.
447