It is impossible to hum if your nose is plugged.
366
It 'snows' metal on Venus.
13
Australian Graham Barker has been collecting his own belly button fluff every day since 1984 - keeping it in storage jars.
15
The 'Bicycle Tree', found near Brig o' Turk in Scotland, has consumed an entire bike that now hangs out of its bark.
17
Denmark has twice as many pigs as there are people.
66
Honeypot ants are a unique insect that use their own bodies as living storage pots of honey.
4