Ok, if you are an adult now. But try to solve the riddle below and check your mathematical abilities.
If you find it a child's play, don't complain. It will help you to recall your childhood days when it was fun solving puzzles which appeared in newspapers and magazines.
But if you find it tough, then you need to be tutored in maths.
Try it, anyway.
Does it appear tough? Well, here comes the answer.
1 x 1 squares = 9
2 x 2 squares = 4
3 x 3 squares = 1
Which gives you the answer as 14.
Challenge your friends and see how good they are with aptitude.