Can you count the number of squares in the given picture?
If eleven plus two equals one, what does nine plus five equal?
Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?
Be active and find the killer in the picture Riddle below.
You can hear me, but you can't touch or see me. What am I?
The following "Brain Bat" means Slow Down. S L O W Using the same logic, can you tell us what does the following Brain Bat means ? E V I G
Can you find the thief by just looking at the picture below?
Can you count the number of triangles in the picture below?
It's pretty hard to give up. If you remove a part of it, you will be left with a bit. Even if you remove another part, the bit still remains. Remove one more and it still remains. What is it?
Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that the sum of the numbers of each group is equal? Note: 9 cannot be turned over to make it 6.
How many words can a pen with half refill write?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.