Can you find the six hidden animals in the picture below?
Can you place six X (crosses) in below board without making three in a row in any way ?
Here is a mathematical expression that also secretly tells a movie name. What movie is that?
In the attached figure, you can see a chessboard and two rooks placed on the chess board. What you have to find is the number of squares that do not contain the rooks. How many are there?
Move four matchsticks to the below square to form three squares?
Spot 5 differences in two Christmas tree below:
Count the number of triangles in the picture below:
Can you count the number of blocks in the picture below?
In the four images below, can you find the odd one out?
Look at the picture and find out which square is not linked with any of the other squares.
Find the hidden panda in the image below.
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.