# MATH BRAIN TEASERS

### Fun Facts (Hints)

Mathematics has an extensive history in just about every culture or civilized society known to man. Listed below are some cool facts to get those math juices flowing:
• In 1852 mathematician JJ Sylvester established the "theory of algebraic invariants."
• In 1995 math great Andrew Wiles, proved "Fermat's Last Theorem."
• The first decimal number system is said to have been invented in Ancient Egypt around 5000BC.
• The Ancient Mayan civilization located in Central America is one of the only cultures in the recorded history of the world to use a place-value number system.
• The American Mathematical Society was formed in the late months of 1888 in New York.

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Terms · Privacy · Contact Math brain teasers are awesome math questions and problems given to entertain us while at the same time giving us an education. Cognitive skills are vital to performing well in almost every activity that we participate in daily, especially in the math field.

This collection compiled by our staff on a regular basis will provide you with a great way to workout that math brain power, and will hopefully benefit you in your studies.

This is an awesome collection for anyone ages 5 and up, and contains a comprehensive set of riddles related to math for a wide range of audiences.

How many of these convoluted math riddles do you think that you can solve? Try out our collection, and be sure to come back regularly to solve our newly added math brain teasers.

## I Have 9 Eggs Riddle Answer Riddle

Hint:
You do not have any eggs left in the end.

Total no. of eggs = 9

No. of broken eggs = 3

No. of boiled eggs = 3

No. of eggs eaten = 3

= 3 + 3 + 3 = 9

= Remaining eggs = 9 - 9 = 0
Did you answer this riddle correctly?
YES  NO
Solved: 58%

## I Bought A Cow For 800 Riddle

Hint:
You earned \$500 \$100 = \$400.
Did you answer this riddle correctly?
YES  NO
Solved: 68%

## Two Ships Riddle

Hint:
The first ship!

First ship = d/35 + d/35 = 2d/35 = 0.0571d

Second ship = d/30 = d/40 = 70d/1200 = 0.058
Did you answer this riddle correctly?
YES  NO
Solved: 54%

## Two Ships Riddle

Hint:
The first ship!

First ship = d/35 + d/35 = 2d/35 = 0.0571d

Second ship = d/30 = d/40 = 70d/1200 = 0.058
Did you answer this riddle correctly?
YES  NO
Solved: 64%

## A Grandmother Two Mothers And Two Daughters Riddle

Hint:
They ordered three cups, one for each person. The grandmother is also a mother and the mother is also a daughter.

Another solution: They ordered two cups. Both are mothers and daughters and one is a grandmother.
Did you answer this riddle correctly?
YES  NO
Solved: 79%

## How Many Times Can You Subtract 5 From 25 Riddle

Hint:
Only one time. After that, you would be subtracting from 20.
Did you answer this riddle correctly?
YES  NO
Solved: 62%

## Mary Has 4 Daughters Riddle

Hint:
Mary has four daughters. Let x be the daughter.
Four daughters mean - x + x + x + x
Each of her daughters has one brother - let y be the son.
Total children => x + x + x + x + y. => 5
She has Total 5 children, all of her daughters have the same 1 brother.
Did you answer this riddle correctly?
YES  NO
Solved: 83%

## If You Take 3 Apples From 10 Apples Riddle

Hint:
Three.

If you take 3 apples from 10 apples, you are simply left with 3 apples.

Many people confuse themselves with the mathematical equation, subtracting three apples away from 10 and therefore equaling an answer of seven apples. This is incorrect.

You did not have any apples to begin with. So by taking 3 apples from 10 apples, you therefore now have 3 apples.
Did you answer this riddle correctly?
YES  NO
Solved: 75%

## 10 Apples In A Basket Riddle

Hint:
One of the people took the basket.
Did you answer this riddle correctly?
YES  NO
Solved: 47%

## A Man Buys A Goat For \$60 Riddle

Hint:
He made \$20. \$10 the first time, \$70 - \$60 = \$10, and \$10 the second time, \$90 - \$80 = \$10, for a total of \$20.
Did you answer this riddle correctly?
YES  NO
Solved: 72%

## A Man Steals 1000 From A Shop Riddle

Hint:
We can easily solve this mathematical problem by using the following mathematical process.

Initial loss amount = Rs. 1000

Now, we have to calculate the recovered amount,

As the man spends Rs. 700 in the shop, the shop owner will surely provide the man goods/services of Rs. 700. So, nothing will be recovered in this case.

Now, the man gave Rs. 1000 against the goods/services of Rs. 700 and got Rs. 300 change, so there will be no recovering of money for the shopkeeper.

Final loss = Initial loss - Recovered amount = 1000-0 = Rs. 1000
Did you answer this riddle correctly?
YES  NO
Solved: 66%

## 7 Men Have 7 Wives Riddle

Hint:
If 7 men have 7 wives that simply means there are 7 coupled, so that is 7 +7 = 14.
Then, if each couple has a child, that's 14 + 7 = 21.
So the total number of people is 21.
Did you answer this riddle correctly?
YES  NO
Solved: 48%

## If Eleven Plus Two Equals One Riddle

Hint:
11 o'clock plus 2 hours = 1 o'clock

9 o'clock plus 5 hours = 2 o'clock
Did you answer this riddle correctly?
YES  NO
Solved: 59%

## What Remains When The Roads Are Gone Riddle

Hint:
Let's take a look at the explanation of the riddle.

As per the total laps in the race are 50 and the driver has completed 12 1/2 laps. This means, we have to subtract 12 1/2 from the total 50 laps. This equal to 37 1/2 or 37.5

50 - 12 1/2 = 37 1/2 or 37.5

Now, we need to calculate the fractional part of the race remains. For this, we need to divide the remaining laps by total laps, that is, 37 1/2 divide by 50 or 37.5 divided by 50 which will be equal to 0.74 or 3/4.

37 1/2 / 50 = 0.74 or 3/4

Hence, the right answer to the riddle is 3/4
Did you answer this riddle correctly?
YES  NO
Solved: 70%

## McDonalds Riddle

Hint: The key is to first determine how much each item is worth. The drink is clearly worth 10, and it's apparent from the second line that the burgers are worth five.
Pictures of the fries are each worth two, but you have to keep in mind that each individual packet of fries is worth one when you get to the next line. That has baited people into thinking, incorrectly, that the last line is 5 + 2 x 10.

The fourth line has also thrown many people off because it involves order of operations after already including the tricky single packet of fries.

Multiplication comes before addition, so you have to multiply one packet of fries by one drink and then add that to one burger. Thus, 5 + (1x10) = 15.
Did you answer this riddle correctly?
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## Post Your Math Brain Teasers Puns Below

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

1. Why did the math book look sad? Because it had too many problems.

2. Why did the math teacher break up with the geography teacher? They were in different planes.

3. What kind of music do math teachers listen to? Alge-brahms.

4. What did one math book say to the other? Don't bother me, I've got my own problems.

5. How many mathematicians does it take to change a light bulb? None. It's left to the reader as an exercise.

6. Why did the math teacher go to the beach? To test the waters.

7. Why did the student bring a ladder to math class? To help with the high, exponents.

8. Why don't math teachers tell jokes? Because they always fall flat.

9. What did the circle say to the tangent line? Stop touching me!

10. What do you call it when you take a calculator to a party? A math function.

11. Why did the student eat his math homework? Because the teacher told him it was a piece of cake.

12. What's a math teacher's favorite movie? Pi.

13. Why was the math book sad? Because it had too many problems to solve.

14. Why was the math book always unhappy? Because it had too many pages and no cover

15. What does a math teacher say when chasing a thief stealing a couple of books? "Stop, you're confusing the issues!"

16. Why do mathematicians hate the numbers 6 and 28? Because they are perfect numbers, and nothing in math is perfect.

17. Did you hear about the math professor who's afraid of negative numbers? He'll stop at nothing to avoid them.

18. What do you call a numbers addict? A Numeraholic.

19. Why did the math teacher break up with her boyfriend? He was too irrational.

20. Why was six afraid of seven? Because seven eight nine!

21. Why was the math book unhappy? Because it had too many problems to solve.

22. What does the number 7 like to talk about? Himself! He's always got something prime to say.

23. Why is 6 afraid of 7? Cause seven eight nine!

24. How do mathematicians keep warm in winter? They put their hands in their pocket and feel for the roots.

25. What did the number 0 say to the number 8? Nice belt!

26. What do you call a number that just can't stay in one place? A wandering numeral.

27. What did the math book say to the student? I've got problems.

28. Why do math teachers love geometry students? Because they always have their angles covered.

29. What does the number 2 say after a workout? I'm two-tally awesome!

30. Why did the math book ask for a new page? It couldn't stop calculating.

31. What does a math teacher call a parrot? A polynomial.

32. How can you tell if a math book is sick? It has a measuring fever.

33. Why did the math teacher divorce the science teacher? The constant arguing over significant digits.

34. What do you get when you cross a math teacher and a clock? Time tables.

35. What do math teachers serve for dessert? Pi ala mode.

36. Why did the math teacher always carry a calculator? To make multiply plans.

37. What does the mathematician say when arriving at the airport? Square root of my destination, please!

38. What did the math teacher say to the difficult student? You're eXcellent!

39. Why did the mathematician retire to Hawaii? To work on his tanGent.

40. Why did the chicken prefer to do math? Because pecking order is a strategy.

41. What makes math so rich? All the Numbers in the bank.

42. What did the number 9 say to 5 when asked if he was even or odd? "I'm odd."

43. Why did the students fall asleep in math? Because it was a snooze X's exercise.

44. What's the difference between a math teacher and a train? One calculates figures and the other figures calculations.

45. What makes math the cutest? It's the Square Roots.

46. Why was the geometry book sad? Because it had too many problems.

47. What does one math book say to the other math book? I'll meet you at the Calculus.

48. Why was the math book sad? Because it had too many logarithms.

49. Why did the calculus student skip class? He wanted to get an INTEGRAL education.

50. What do you call the worst kind of math student? A sine-er.
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