### Fun Facts (Hints)

Different types of riddles have challenged people for centuries, here are a few facts about them that may give you some hints in solving these challenging questions:
Riddles in math are used by math teachers in many different cultures.
Many teachers promote the idea that giving students mathematical riddles helps to encourage their pupils to think more creatively and strategically.
These riddles are considered especially helpful in classrooms where students have emotional problems, as it pulls them away from their problems, and forces them to think creatively about what is before them.
Detectives are sometimes forced to solve riddles involving math when searching for psychopaths and serial killers.
Math riddles are used at home by many parents seeking to help their students become more engaged in their math schoolwork/homework.

#### Trending Tags

#### Popular Searches

A Sheep With A Lamb Riddles Attic Riddles Auditorium Riddles Butterfly Riddles Circus Riddles Cloud Riddle Riddles Cruise Riddles Crush Riddles Funny Halloween S Riddles Horse Riddles I Can Fill A Room And Just One Heart Riddles I Can Fill A Room Or Just One Heart Others Can Have Me But I Cant Be Shared What Am I Riddles Light Me Up For A Sprinkle Of Gold Riddles This Thing All Things Riddles Why Did Hamburgers Go To Gym Riddles

Feel free to use content on this page for your website or blog, we only ask that you reference content back to us. Use the following code to link this page:

#### Search Suggestions

Trouble finding

Terms · Privacy · Contact
**algebra riddles**? Here are some search terms related to mathematical riddles to try browsing:Riddles and Answers © 2017

## Fun Math Riddles

**math riddles**to help stimulate the minds of your students? Do you love math and want to exercise your brain for all of the tough math work that you'll more than likely face in the near distant future? We've got you covered with one of the most extensive collections of mathematical riddles that one can find on the modern internet!

Mathematical riddles are a great way for math students and enthusiasts to stay excited and motivated. This collection of the best math questions from around the net ranges in difficulty, from the fairly easy to tough, while some are extremely difficult.

Are you ready to get your math on? Put on those thinking caps and go full speed ahead.

## 1500 Plus 20 And 1600 Minus 40 Riddle

Hint:

## Mermaid Math Class Riddle

Hint:

## Math Therapy Riddle

Hint:

## Late Home Work Riddle

Hint:

## Jumping Into The Bowling Water Riddle

Hint:

## The Sad Math Book

Hint:

## 10 From 100 Riddle

Hint:

## Little Billy's Calculator

Little Billy has a calculator with 15 buttons. He has 10 keys for 0-9, a key for addition, multiplication, division, and subtraction. Finally, he has an = sign. However, Mark the Meanie messed up the programming on Billy's calculator. Now, whenever Billy presses any of the number keys, it comes up with a random single-digit number. The same goes for the four operations keys (+,-,x, /). So whenever Billy tries to press the + button, the calculator chooses randomly between addition, multiplication, subtraction, and division. The only key left untouched was the = sign.

Now, if Billy were to press one number key, one operation key, then another number key, then the = button, what are the chances the answer comes out to 6?

Now, if Billy were to press one number key, one operation key, then another number key, then the = button, what are the chances the answer comes out to 6?

Hint: Think about how many ways he could possibly get 6.

There is a 4% chance.

There are 16 possible ways to get 6.

0+6

1+5

2+4

3+3

6+0

5+1

4+2

9-3

8-2

7-1

6-0

1x6

2x3

6x1

3x2

6/1

There are 400 possible button combinations.

When Billy presses any number key, there are 10 possibilities; when he presses any operation key, there are 4 possibilities.

10(1st#)x4(Operation)x10(2nd#)=400

16 working combinations/400 possible combinations= .04 or 4%

YES NO

There are 16 possible ways to get 6.

0+6

1+5

2+4

3+3

6+0

5+1

4+2

9-3

8-2

7-1

6-0

1x6

2x3

6x1

3x2

6/1

There are 400 possible button combinations.

When Billy presses any number key, there are 10 possibilities; when he presses any operation key, there are 4 possibilities.

10(1st#)x4(Operation)x10(2nd#)=400

16 working combinations/400 possible combinations= .04 or 4%

*Did you answer this riddle correctly?*YES NO

## The Gardners Riddle

Gretchen and Henry were discussing their new neighbors, the Gardners. Gretchen mentioned that she met two of the daughters, and they each had blond hair.

"I have met all of the sisters," replied Henry, "and the probability that both of the girls you met would have had blond hair, assuming you were equally likely to meet any of the sisters, is exactly 50%. Do you know how many children there are?"

After thinking for a minute, Gretchen asks if the family is abnormally large. When Henry replies that it is not, Gretchen tells him how many girls are in the family. What number did she say?

"I have met all of the sisters," replied Henry, "and the probability that both of the girls you met would have had blond hair, assuming you were equally likely to meet any of the sisters, is exactly 50%. Do you know how many children there are?"

After thinking for a minute, Gretchen asks if the family is abnormally large. When Henry replies that it is not, Gretchen tells him how many girls are in the family. What number did she say?

Hint:

Gretchen said that there were 4 girls in the family, three of whom were blond.

This would make the probability that she saw two blonds (3/4) * (2/3), which equals 1/2.

Other numbers would work, but the next pair would lead to a rather large family.

YES NO

This would make the probability that she saw two blonds (3/4) * (2/3), which equals 1/2.

Other numbers would work, but the next pair would lead to a rather large family.

*Did you answer this riddle correctly?*YES NO

## 1 + 1 = 3 Riddle

Hint:

## Post Your Math Riddles Below

Can you come up with a cool, funny or clever Math Riddles of your own? Post it below (without the answer) to see if you can stump our users.