Australian Graham Barker has been collecting his own belly button fluff every day since 1984 - keeping it in storage jars.
15
Yawns are more contagious among people with closer relationships.
163
If you put two straws in your mouth, one inside a drink and one outside it, you won't be able to drink through either straw.
202
It 'snows' metal on Venus.
13
In the UK, there's a guy named 'Major Dickie Head'.
31
It would take more than 150 years to drive a car to the sun.
569