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.

Can you find the key in the picture below?

You have to fill the below given grid in a manner that every row and column contains the digits 1 to 6. Also, make sure that the squares that are connected with each other must contains the same digit.

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

Can you count the number of blocks in the picture below?

Which tank will fill first?

Can you find out the missing number in the grid?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

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

Can you find out the number that should replace the question mark with a valid reason?