Played chess? you should be able to answer this.
How many squares are there on a chessboard?
(Hint: The answer is not 64.)
If you just take 1 x1 squares there are 64 of them but there are many more different-sized squares on the chessboard.
Therefore, there are actually 64 + 49 + 36 + 25 + 16 + 9 + 4 + 1 squares on a chessboard! (in total 204).
Answer is 204 sqaures.