The test was badly thought out it said that watching TV would be a healthy thing that I should do for my mind. Well actually watching TV dumbs the mind and large amounts can render you a complete mess, ie. Justin Bieber and his fangirls.
TV offers no stimulating effect for your brain you just sit there and watching it letting it feed you all of the information requiring no active participation which is why its often for certain people to fall asleep in front of a TV.
Anyways it said my mental age was 23, I am 19 and I wanted to be 24.