Not everyone is born with a big brain. Not everyone can say things like ‘Elementary, my dear Watson' with a straight face. But that doesn't mean you can't get an edge on the competition.

This spinning lady was once popular on the internet as a way of a test to find out whether one is a left-brained or right-brained individual. The idea was, if you see the dancer turning counter-clockwise then you use more of the left side of your brain. If you see her turning clockwise, then you are a right-brained person.