Find the hidden tiger in the given optical illusion ?
How many triangles can you find in this given picture?
Move three sticks of the spiral below to form a square.
Can you find the hidden animal in the picture below?
Out of four images which one is the odd one out?
What do you see in the image below
Count the number of balls in picture below:
Count the number of lines in the image below ?
Count the number of squares in the picture below.
Which tank will fill first?
In the four images below, can you find the odd one out?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.