Look very closely at these numbers – which cypher belongs in the place of the question mark?
Great, you answered "4".
See here what other people have answered:
- 1
- 4
- 2
- 3
Click "CONTINUE" to proceed to the next question
Interesting fact:
The history of riddles is as old as mankind itself. The oldest recorded riddles were found in Mesopotamia and date back to 4370 BCE.