Mind-Bending Math Puzzles and Brain Teasers for Adults

For the last few weeks, we have been publishing the different types of Math Brain Teasers. Most of these brain teasers were based upon one Geometrical shape. In these puzzles, this shape contains few numbers around it which are mathematically related to each other. One has to find this mathematical relationship or pattern to solve it for the missing digit. Today we are going to revise these puzzles. In this post we are going to give one puzzle of each type and then link to the other similar puzzles is given at the end of each puzzle.

In these puzzles, some numbers around one shape are given. These numbers are related to each other mathematically. Your challenge in these mind-bending math puzzles is to crack the hidden mathematical pattern among these numbers. Once you are able to crack the code, then find the missing number which will replace the question mark in each puzzle.

These are tough puzzles. However, link after each puzzle will lead to similar puzzles which are easy to solve. So don't forget to check out linked puzzles if you find any of these puzzle type interesting as there are many puzzles waiting to be discovered by you :)

Do post your answers to these puzzles in the comment section.

1. Mind-bending math cross circle puzzle question

Click here to check out similar Math Cross Riddles

2. Tough math double circle picture brain teaser

Click here to check out similar Math Double Circle Riddles

3. Tough math square puzzle question

Click here to check out similar Math Square Riddles

4. Tricky math star picture puzzle question

Click here to check out similar Math Star Riddles

5. Very tough math circle brain teaser

Click here to check out similar Math Circle Riddles

The answer to some of these "Mind-Bending Math puzzles and brain teasers for adults", can be viewed by clicking on the button. Please do give your best try before looking at the answers.

1. Answer is 1. 
Multiplication of vertically aligned numbers is same.

2. Answer is 2.
Multiplication of Inner and Outer touching numbers is 48.


4. Inner Missing Number in Star is 9 and 
Missing Number outside Star is 4
Difference of two neighbouring inner number is in between outer number of Star.

5. This is very tough Circle Brain Teaser
Answer is 2.
Lets mark the given numbers as A, B, C and D reading from top to down and left to right.
The hidden logic in this Circle Brain Teaser is.........
C=D+B-(Minimum Of(B,C)+A)