Find out the number of circles in the given picture having Illusion

Which tank will fill first?

Can you place six X (crosses) in below board without making three in a row in any way ?

See the given image carefully. What you have to do is move the blue checkers in the position of the black checkers and vice versa. You are only allowed to move the checker to an adjacent empty space. Do it in the least possible moves.

Can you count the number of triangles in the given figure?

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

Solve this riddle by finding the odd one out from the rest.

In the picture, you can see a chess board. On the top left position, the K marks a knight. Now, can you move the knight in a manner that after 63 moves, the knight has been placed at all the squares exactly once excluding the starting square?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

Move four matchsticks to the below square to form three squares?