This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

Look at the picture and find out which square is not linked with any of the other squares.

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

You can see three almost identical images below. Can you spot the odd one out from them?

Out of four images which one is the odd one out?

Can you find the key in the picture below?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

In the Chess Board picture below white army is arranged. You need to add a black army on the board such that no piece is under any threat.
Note: Army comprised of 1 king, 1 queen, 2 rooks, 2 bishops, 2 knights, and 8 pawns.

Spot what is wrong here in below Picture?

Identify the 10 differences between the two given pictures.