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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Riddles and Answers © 2023
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
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
I Bought A Cow For 800 Riddle
I sold it for $1000.
I bought it again for $1100.
I sold it again for $1300.
How much did I earn?
Hint:
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
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
Two Ships Riddle
Two ships leave the port of San Diego, both sailing for the distant shores of Japan. Each ship plans to travel the same route, spending a two-week stopover in Tokyo before returning to California. The first ship churns through the sea at 35 miles per hour throughout the entire journey. The second ship moves slower, at just 30 mph. After two weeks in Tokyo, the captain of the second ship decides to run at a faster pace, moving at 40 mph for the entire return trip. Which ship arrives in San Diego first?
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
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
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
Another solution: They ordered two cups. Both are mothers and daughters and one is a grandmother. Did you answer this riddle correctly?
YES NO
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
YES NO
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
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
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
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
10 Apples In A Basket Riddle
Hint:
A Man Buys A Goat For $60 Riddle
How much did he make?
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
YES NO
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
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
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
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
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
9 o'clock plus 5 hours = 2 o'clock Did you answer this riddle correctly?
YES NO
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
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
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?
YES NO
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?
YES NO
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