This is a tough Maths Logic Puzzle only for genius Mensa brains. Solving this puzzle will test your mathematical and logical skills. In this puzzle, there are four circles. Each circle is having 5 numbers. There is a logical pattern with which these numbers inside and around the circle relate to each other. Your challenge is to find this logical reasoning in this puzzle and find the value of the missing number which replaces the question mark.
Write your answer to this maths logic puzzle in the comments box along with the logical reasoning used to solve this puzzle. 'Alexandre Costa from Italy' is the first person to solve this puzzle correctly. He in fact gave few logical answers to this puzzle. Readout our discussion on the logic used in this puzzle in the comments.
The answer to this "Genius Math Logic Puzzle", can be viewed by clicking on the answer button.

Idiotic said...

the answer is 3 because the sum of the other groups of numbers is 20

Rajesh Kumar said...

The sum of the numbers in the first group is 22.

Unknown said...

8. Basically the sum of the external numbers multiplied by the internal number gives a sequence that increases each time by a quantity plus 8. The sequence is 40, 64, 96 and 136.

Rajesh Kumar said...

This is nice logical thinking and I cannot reject this answer 8 as it is explained with logical reasoning. However, it will nice to know a simple answer to this puzzle :).

Unknown said...

Any hint for the simple answer?

Rajesh Kumar said...

No hints as of now. This is an open-ended puzzle question and one may come up with some innovative answers as some readers have done in the previous comments. I don't want to direct the reader's brain in a particular direction :).

Unknown said...

Ok, I understand. Anyway, 7 because the sum of the 3 horizontal numbers minus the 2 vertical numbers gives 6.

Rajesh Kumar said...

You cracked this puzzle correctly this time. It will be great to know your name as you are the first one to find the simple hidden logic in this puzzle. I will write your name in the post.

Unknown said...

Alexandre Costa from Italy, it's mine also the first solution :-) !!!
bye bye

Rajesh Kumar said...

Great Alexandre, I have mentioned your name in this post as you are the first person to solve this puzzle correctly twice.
It is nice to have your comments on this website. Please solve the similar puzzles and brainteasers on this site and post your comments.