Can you place six X (crosses) in below board without making three in a row in any way ?
Can you count the number of quadrilaterals in the picture below?
Below is the sum of symbols in each row and column in the figure. Analyzing the figure, can you find out the value of the symbols?
Can you find out the total number of triangles in the given figure?
Can you count the number of triangles in the picture below?
Can you count the number of squares in the given picture?
Remove two matchsticks to make the below equation correct.
Solve this riddle by finding the odd one out from the rest.
How many triangles can you find in this given picture?
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 is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.