Can you count the number of lines in the below picture?
Can you count the number of squares in the given picture?
How many triangles can you find in this given picture?
Can you count the number of triangles in the given picture?
Count the number of triangles in the picture below:
In the image given, you can find several triangles. Can you count them all?
You can see three almost identical images below. Can you spot the odd one out from them?
Count the number of balls in picture below:
If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?
Find the number of squares in the below picture
Spot the cat in the picture below
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.