Here I am posting simple Math Brain Riddles for Kids and Teens. These are the brain teasers I keep on preparing for my 9 years old daughter. These Math Riddles are for fun and most of these brain riddles used Mathematically operations e.g. Addition, Subtraction, Multiplication and Division. I have kept these riddles easy so that kids and teens enjoy solving these math riddles. These Math Riddles are part of Fun Brain Teasers and Riddles.

I have answered all these brain teasers. Link to the answer post for each of brain riddle is given. Do scroll down the linked answer post to get see the answer.

Lets start with very easy brain riddle.

1. IF

1x1x1 =5

2x2x2 = 10

3x3x3 = 15

4x4x4 = 20

then

6x6x6 = ?

Many people should be able to immediately answer this brain teaser.

2. If

31 + 22 = 422

22 + 11 = 411

33 + 33 = 633

Then

44 + 55 = ?

3. IF

2 + 2 = 44

3 + 3 = 96

4 + 4 = 168

5 + 5 = 2510

Then

6 + 6 = ?

Another simple brain riddle which took little time for me to get it cracked.

4. IF

3+4 = 28

2+3 = 20

5+1 = 24

3+6 = 36

THEN

5+3 = ?

Adding the 3 element in the equation to make these Math Brain Riddles interesting

5. IF

2 x 3 x 2 = 632

4 x 5 x 3 = 2053

3 x 3 x 5 = 935

THEN

5 x 1 x 4 = ?

This one is very interesting Brain teaser which kids will love to solve it.

6. IF

5+5 = 52

6+2 = 21

3+9 = 72

THEN

7+2 = ?

These brain riddles are all about Mathematical equations. Here is another simple one

7. IF

35 + 7 = 5

42 + 6 = 7

21 + 3 = 7

THEN

12 + 4 = ?

This one will require some out of box thinking. I can assure you that this one is again an easy brain riddle.

8. IF

81 + 9 = 9

61 + 8 = 8

21 + 4 = 8

THEN

51 + 9 = ?

This Brain Riddle if clicks is very easy one, otherwise one can spend a great amount of time trying to find out this one.

9. IF

12 x 21 = 6

31 x 23 = 9

43 x 14 = 12

71 x 34 = 15

THEN

23 x 56 = ?

Lets do something different in this brain riddle then the previous Math brain riddles.

10. IF

1 + 4 = 45

4 + 2 = 86

5 + 6 = 3011

7 + 8 = 5615

Then

2 + 8 = ?

This is simple and easy brain teaser for kids.

11. IF

3423 = 75

1234 = 37

4562 = 98

Then

1345 = ?

Lets extend the idea of previous brain teaser with this math brain riddle.

12. IF

225 x 341 = 116

345 x 751 = 196

443 x 552 = 185

Then

782 x 234 = ?

Lets change the track of this fun brain teaser

13. IF

2 9 12 = 1

1 5 10 = 4

4 6 19 = 9

Then

5 7 24 = ?

Lets give your brain some rest with this easy brain teaser question

14. IF

6+6+6+6 = 12

6+6 = 6

Then

6+6+6+6+6 = ?

15. Which will be the missing number in this series?

5, 10, 17 , ?, 37, 50

16. IF

1 + 2 + 3 = 343

2 + 3 + 6 = 666

3 + 4 + 5 = 985

Then

2 + 2 + 3= ?

Here is answer to 24th Riddle of "Fun Brain Teasers For Kids, Teens and Adults with Answers to Challenge your Mind".

I have hidden this answer to avoid any spoiler. Do select the text below to read the answer.

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When Rajesh says that "I don't know Ashu's date of birth. However I know that Evanthe also does not know it."

This statement means that Rajesh is knowing the month which contains the numbers which are repeated in other months i.e. Rajesh contains the month which does not have any unique number as date. It means that Rajesh is not having months Feb and April as these months contains dates Feb 19 and April 21 which are unique.

After this Evanthe is left with following dates

May 12, May 14

June 12, June 13, June 17

and she says "I was not knowing it however now I know Ashu's birthday."

Now with her statement she can not have number 12 otherwise she cannot be sure about the birthday which will be either May 12 or June 12. Now as she is sure to have found that date that means birthday can be now be in following dates

May 14

June 13, June 17

After listening to Evanthe, Rajesh looks at the month he is having and says that "Then, I also know when Ashu's birthday is."

It means that he is having the month which has now only one date left i.e. May 14, otherwise he cannot make the above statement.

So the answer is May 14.

This statement means that Rajesh is knowing the month which contains the numbers which are repeated in other months i.e. Rajesh contains the month which does not have any unique number as date. It means that Rajesh is not having months Feb and April as these months contains dates Feb 19 and April 21 which are unique.

After this Evanthe is left with following dates

May 12, May 14

June 12, June 13, June 17

and she says "I was not knowing it however now I know Ashu's birthday."

Now with her statement she can not have number 12 otherwise she cannot be sure about the birthday which will be either May 12 or June 12. Now as she is sure to have found that date that means birthday can be now be in following dates

May 14

June 13, June 17

After listening to Evanthe, Rajesh looks at the month he is having and says that "Then, I also know when Ashu's birthday is."

It means that he is having the month which has now only one date left i.e. May 14, otherwise he cannot make the above statement.

So the answer is May 14.

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Here is answer of 4th Brain Teaser of Finding Hidden Faces in the Given Pictures Puzzles (Interesting Fun Brain Teasers)

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