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
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:
Terms · Privacy · Contact
Riddles and Answers © 2024
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% Did you answer this riddle correctly?
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. Did you answer this riddle correctly?
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:
30 Sacks Of Coconuts
An intelligent trader travels from one place to another with 3 sacks having 30 coconuts each. No sack can hold more than 30 coconuts. On the way, he passes 30 check points. At each check point, he has to give one coconut for every sack he is carrying. What is the maximum number of coconuts that he can have with him at the end of his journey?
Hint:
He will have 25 coconuts with him at the end. The trick is to reduce the number of sacks as you pass checkpoints.
The first 10 checkpoints require 3 coconuts each, which empties his first sack. The next 15 checkpoints require 2 coconuts each, which will empty his second stack. Now, he is left with 1 sack and 5 more checkpoints. So, the 5 checkpoints will take 1 coconut each. Therefore, he will be left with 25 coconuts. Did you answer this riddle correctly?
YES NO
The first 10 checkpoints require 3 coconuts each, which empties his first sack. The next 15 checkpoints require 2 coconuts each, which will empty his second stack. Now, he is left with 1 sack and 5 more checkpoints. So, the 5 checkpoints will take 1 coconut each. Therefore, he will be left with 25 coconuts. Did you answer this riddle correctly?
YES NO
100 Fruits
For $1 you get 40 Cherries. For $3 you get 1 Orange. For $5 you get 1 Watermelon. Your mother told you to get 100 fruits for $100. How many of Cherries, Oranges and Watermelons will you buy?
Hint:
5+5+5=550 Riddle
Hint:
Equals Eight Riddle
Hint:
Mirror one of the threes and put it and the other three together to get an eight. Did you answer this riddle correctly?
YES NO
YES NO
More Than 90 Degrees Riddle
Hint:
Find The Digits Riddle
In the number wheel in the picture, you can find several digits except one question mark.
Can you find the digit that should be placed in place of that question mark?
Can you find the digit that should be placed in place of that question mark?
Hint:
The required digit is 0.
If you add up all the digits in any diagonal, you will find the sum to be 25. Did you answer this riddle correctly?
YES NO
If you add up all the digits in any diagonal, you will find the sum to be 25. Did you answer this riddle correctly?
YES NO
Apricot Jam Riddle
Morgan was making apricot jam. She put all the apricots in the pot and stirred them up. Then she remembered she had to add 1 ounce of lemon juice for every two apricots! How did she figure out how much lemon juice to put?
Hint:
Bat And Ball Riddle
If a baseball and a bat cost $1.10 together, and the bat costs $1.00 more than the ball, how much does the ball cost?
Hint: The answer isn't 10 cents.
Here's the solution:
Although $1.00 + $0.10 does equal $1.10, if you take $1.00 $0.10 you get $0.90, but the problem requires that the bat costs $1 more than the ball.
So, the ball must cost $0.05, and the bat must cost $1.05 since $1.05 + $0.05 = $1.10
---
Still not convinced? You can use algebra to solve the problem:
First, lets set up the equation:
x + ($1.00 + x) = $1.10
$1.00 + 2x = $1.10
2x = $1.10 $1.00
2x = $0.101
Finally, solve for x:
x = $0.05
Check your work:
x + ($1.00 + x) = $1.10, so
$0.05 + ($1.00 + $0.05) = $1.10 Did you answer this riddle correctly?
YES NO
Although $1.00 + $0.10 does equal $1.10, if you take $1.00 $0.10 you get $0.90, but the problem requires that the bat costs $1 more than the ball.
So, the ball must cost $0.05, and the bat must cost $1.05 since $1.05 + $0.05 = $1.10
---
Still not convinced? You can use algebra to solve the problem:
First, lets set up the equation:
x + ($1.00 + x) = $1.10
$1.00 + 2x = $1.10
2x = $1.10 $1.00
2x = $0.101
Finally, solve for x:
x = $0.05
Check your work:
x + ($1.00 + x) = $1.10, so
$0.05 + ($1.00 + $0.05) = $1.10 Did you answer this riddle correctly?
YES NO
King Arthur's Round Table Riddle
Hint:
Post Your Math Riddles Puns 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.
1. Why was the math book sad? Because it had too many problems.
2. Why don’t mathematicians sunbathe at the beach? Because they use imaginary numbers.
3. What did the math teacher say to her students on Valentine’s Day? "Let’s make some propositions!"
4. Why do math teachers love geometry? Because it’s plane fun.
5. Why was six afraid of seven? Because seven eight nine.
6. Why do mathematicians love parks? Because of all the natural logarithms.
7. What’s the best way to impress a math teacher? Multiply yourself and add your standard deviation.
8. What do you get when you cross a math teacher and a clock? Time tables.
9. How can you tell if a math teacher is hungry? They start talking about Pie.
10. Did you hear about the math expert who’s afraid of negative numbers? He will stop at nothing to avoid them.
11. How do construction workers do math? With a calculator-i!
12. What do you get when you cross a math teacher and a train? A geometric progression.
13. Why do math teachers love chicken? Because it’s a good source of pi protein.
14. What did the calculus teacher say to her students who were failing? "Don’t integrate yourself into a problem that you can’t differentiate your way out of."
15. Why was the math book sad after prom? All its angles were acute, and the book felt so…almost right-angled.
16. What did the math teacher say to his students who were having trouble understanding fractions? "The key to understanding fractions is to pick up the pieces."
17. Why was the geometry class always tired? Because they were constantly finding the hypotenuse.
18. What is the plural of "summit"? Math teachers would tell you it’s "summation."
19. What do you say when you see a math teacher eating a sandwich? Square root of ‘yum’?
20. What do you call a number that can’t keep still? A roamin’ numeral!
21. Why did the math professor take out a loan? To sine on the dotted line.
22. Why couldn’t the bicycle stand up by itself? Because it was two-tired!
23. Why did the math student fail his exam? He couldn’t solve any of the problems on the standard deviation curve.
24. Why was the math book so tense? Because it had too many problems to solve.
25. Why do mathematicians like stories? Because they always have a good plot and sets of numbers.
26. Why did the math teacher go to the circus? To see the math-tractions!
27. Why don’t mathematicians ride motorcycles? They don’t like to take chances with angles.
28. What’s a math teacher’s favorite day of the week? Pi Day!
29. What do you call the number 7 and the number 3 when they go on a date? A product of their times.
30. Why did the math teacher cross the road? To get to the calculator on the other side.
31. Why was the math book so afraid of the circle? Because it was perfectly round.
32. What do you call a group of math teachers? Geometree.
33. Why was the math student’s dream so vivid? Because it was linear.
34. Why do mathematicians like nature? Because it’s full of exponential growth.
35. What do you call a math teacher who teaches addition? A sum-thing genius.
36. Why was the calculator feeling sad? Because it had no friends to divide by.
37. Why did the math teacher go to the beach? To catch some rays.
38. What do you call a math teacher who knows how to party? The Calculus of Fun.
39. Why can’t a bike stand up by itself? Because it’s two-tired!
40. What do you call a number that can keep a secret? A cryptonumber!
41. Why did the math book get a detention? It couldn’t keep its digits to itself.
42. How can you tell if a math teacher is happy? They’re always positively charged.
43. What do you call a mathematician who’s always cold? An absolute zero.
44. Why can’t a pirate do math? He always forgets the Aye on Pi-Day.
45. What do you get when you cross a math teacher and an elephant? Trunkated numbers.
46. Why did the math teacher need a ladder? To find the square root of the roof.
47. What do you call a math teacher who loves puns? A funny-tioning.
48. What did the right triangle say to the isosceles triangle? "You’re so acute!"
49. What did the math teacher say when her student got a C+? "You’ll do better next time, don’t be so negative."
50. Why do math teachers hate fractions? Because they’re always getting mixed up.
1. Why was the math book sad? Because it had too many problems.
2. Why don’t mathematicians sunbathe at the beach? Because they use imaginary numbers.
3. What did the math teacher say to her students on Valentine’s Day? "Let’s make some propositions!"
4. Why do math teachers love geometry? Because it’s plane fun.
5. Why was six afraid of seven? Because seven eight nine.
6. Why do mathematicians love parks? Because of all the natural logarithms.
7. What’s the best way to impress a math teacher? Multiply yourself and add your standard deviation.
8. What do you get when you cross a math teacher and a clock? Time tables.
9. How can you tell if a math teacher is hungry? They start talking about Pie.
10. Did you hear about the math expert who’s afraid of negative numbers? He will stop at nothing to avoid them.
11. How do construction workers do math? With a calculator-i!
12. What do you get when you cross a math teacher and a train? A geometric progression.
13. Why do math teachers love chicken? Because it’s a good source of pi protein.
14. What did the calculus teacher say to her students who were failing? "Don’t integrate yourself into a problem that you can’t differentiate your way out of."
15. Why was the math book sad after prom? All its angles were acute, and the book felt so…almost right-angled.
16. What did the math teacher say to his students who were having trouble understanding fractions? "The key to understanding fractions is to pick up the pieces."
17. Why was the geometry class always tired? Because they were constantly finding the hypotenuse.
18. What is the plural of "summit"? Math teachers would tell you it’s "summation."
19. What do you say when you see a math teacher eating a sandwich? Square root of ‘yum’?
20. What do you call a number that can’t keep still? A roamin’ numeral!
21. Why did the math professor take out a loan? To sine on the dotted line.
22. Why couldn’t the bicycle stand up by itself? Because it was two-tired!
23. Why did the math student fail his exam? He couldn’t solve any of the problems on the standard deviation curve.
24. Why was the math book so tense? Because it had too many problems to solve.
25. Why do mathematicians like stories? Because they always have a good plot and sets of numbers.
26. Why did the math teacher go to the circus? To see the math-tractions!
27. Why don’t mathematicians ride motorcycles? They don’t like to take chances with angles.
28. What’s a math teacher’s favorite day of the week? Pi Day!
29. What do you call the number 7 and the number 3 when they go on a date? A product of their times.
30. Why did the math teacher cross the road? To get to the calculator on the other side.
31. Why was the math book so afraid of the circle? Because it was perfectly round.
32. What do you call a group of math teachers? Geometree.
33. Why was the math student’s dream so vivid? Because it was linear.
34. Why do mathematicians like nature? Because it’s full of exponential growth.
35. What do you call a math teacher who teaches addition? A sum-thing genius.
36. Why was the calculator feeling sad? Because it had no friends to divide by.
37. Why did the math teacher go to the beach? To catch some rays.
38. What do you call a math teacher who knows how to party? The Calculus of Fun.
39. Why can’t a bike stand up by itself? Because it’s two-tired!
40. What do you call a number that can keep a secret? A cryptonumber!
41. Why did the math book get a detention? It couldn’t keep its digits to itself.
42. How can you tell if a math teacher is happy? They’re always positively charged.
43. What do you call a mathematician who’s always cold? An absolute zero.
44. Why can’t a pirate do math? He always forgets the Aye on Pi-Day.
45. What do you get when you cross a math teacher and an elephant? Trunkated numbers.
46. Why did the math teacher need a ladder? To find the square root of the roof.
47. What do you call a math teacher who loves puns? A funny-tioning.
48. What did the right triangle say to the isosceles triangle? "You’re so acute!"
49. What did the math teacher say when her student got a C+? "You’ll do better next time, don’t be so negative."
50. Why do math teachers hate fractions? Because they’re always getting mixed up.