It’s funny riddles with answers time! Laugh yourself silly with **funny math riddles**. Hard, easy, long or short, all are hilarious!

## Funny math riddles

Right now Mum is 21 years older then her child In 6 years her child will be 5 times younger than she. Where is daddy?

5*(X+6) = (X+6)+21

4*(X+6) = 21

X+6 = 5.25

X = -0.75

So daddy is at top of mom

If you had a pizza with crust thickness ‘a’ and radius ‘z’, what’s the volume of the pizza?

pi * z * z * a

What do you get if you add 2 to 200 four times?

202 , 202 , 202 , 202

If 5 Rats eat 5 cheese in 5 seconds.

How many seconds would it take 4 Rats to eat 4 cheese ?

5 seconds

Manish has to secure 40% marks to pass his B.tech final exams.

He got just 40 marks and failed by 40-marks.

What is the maximum marks ?

200

To pass the exam manish needs 40 + 40 = 80 marks.

=> (80/40) *100 = 200

I know a number which is spelled in an alphabetical order.

Do you ?

Forty

How can you write nineteen in a manner that if we take out one, it becomes twenty?

XIX. On taking one i.e. I, we get XX i.e. 20

Which is the smallest number that you can write using all the vowels exactly once.?

sIx thOUsAnd twEnty (6020)

Use only one mathamatical symbols and all numbers (0-9) to get sum of 99

9+8+7+65+4+3+2+1+0

I went to the book shop and spent one half of the money that was in my purse.

When I came out, I found that I had as many cents as I had dollars and half as many dollars as I had cents when I went in. Find the money in my purse when I entered the store.

I have Dollar 99.98 in my purse when I entered the store.

## Funny math riddles 2

Alexander is stranded on an island covered in forest.

One day, when the wind is blowing from the west, lightning strikes the west end of the island and sets fire to the forest. The fire is very violent, burning everything in its path, and without intervention the fire will burn the whole island, killing the man in the process.

There are cliffs around the island, so he cannot jump off.

How can the Alexander survive the fire? (There are no buckets or any other means to put out the fire)

Alexander picks up a piece of wood and lights it from the fire on the west end of the island.

He then quickly carries it near the east end of he island and starts a new fire. The wind will cause that fire to burn out the eastern end and he can then shelter in the burnt area.

Alexander survives the fire, but dies of starvation, with all the food in the forest burnt….lolzzz

There is a certain crime, that if it is attempted, is punishable, but if it is committed, is not punishable. What is the crime?

Suicide

When is 1500 plus 20 and 1600 minus 40 the same thing?

military time

What 3 positive numbers give the same result when multiplied and added together?

1, 2 and 3

A bat and a ball cost $1.10. The bat costs one dollar more than the ball. How much does the ball cost?

The ball costs 5c. Not 10c. One dollar more than 10c is $1.10, $1.10 + 10c is $1.20 One dollar more than 5c is $1.05. The sum of which is $1.10.

When I take five and add six, I get eleven, but when I take six and add seven, I get one. What am I?

clock

There are 12 kids in a classroom. 6 kids are wearing socks and 4 are wearing shoes. 3 kids are wearing both. How many are bare feet?

5 kids are bare feet.

Divide 20 by half and add 30, what do you get?

70. 20 divided by 1/2 + 30 = 70

If Mr. Flynn is 90 centimeters plus half his height, how tall is he?

180 centimeters.

How can you give someone $83 using exactly 7 bills, without using any one dollar bills?

Give them 1 fifty dollar bill, 1 twenty dollar bill, 1 five dollar bill and 4 two dollar bills.

What number do you get when you multiply all of the numbers on a telephone’s number pad?

Zero. Anything multiplied by 0 will equal 0.

## Funny math riddles 3

There are two fathers and two sons. They walk into a candy store and each buys a candy bar for 50 cents. The total for all of the candy bars was $1.50. How is that possible?

There was a grandfather, a father and a son.

Joe has ten coins totaling $1.19. From these coins, he cannot make exact change for a dollar, half-dollar, quarter, dime, or nickel.

What are the coins?

A half-dollar, a quarter, four dimes, and four pennies.

What do mathematics teachers like to eat?

Pi

Dean Sam and Castiel are three brothers. Interestingly their current age is prime. What’s more interesting that difference between their ages is also prime. How old are they?

Sam: 2; Dean: 5; Castiel: 7. Age diff 7 – 2 = ‘5’ is prime; 7 – 5 = ‘2’ is prime; 5 – 2 = ‘3’ is prime.

In a lake, there is a patch of lily pads. Every day, the patch doubles in size. If it takes 48 days for the patch to cover the entire lake, how long would it take for the patch to cover half the lake?

The patch doubles in size every day and so on the 47th day the patch will be half the size it is on the 48th day.

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

There is a 50/50 chance of each toss being either heads or tails. The previous toss does not impact the next toss.

What is the value of 1/2 of 2/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1000?

100.

How many days are there in 4 years?

(365 x 4) + 1 = 1461. Because one of the years is a leap year.

The combined age of Jack and John is 49. Jack is twice as old, as John was when Jack was as old as John is now. How old are the brothers?

Jack is 28 and John is 21.

If you go to the movies and you’re paying, is it cheaper to take one friend to the movies twice, or two friends to the movies at the same time?

It’s cheaper to take two friends at the same time. In this case, you would only be buying three tickets, whereas if you take the same friend twice you are buying four tickets.

Three times what number is no larger than two times that same number?

## Funny math riddles 4

How can you add eight 8’s to get the number 1000?

888 + 88 + 8 + 8 + 8 = 1000

You have 14 brown socks, 14 blue socks and 14 black socks in your sock drawer. How many socks must you remove (without looking to be sure) to have a matched pair?

four

Mr. Smith has 4 daughters. Each of his daughters has a brother. How many children does Mr. Smith have?

five

Use the numbers 2, 3, 4 and 5 and the symbols + and = to make a true equation.

2 + 5 = 3 + 4

There are 25 red balls, 47 green balls and 3 blue balls in a basket. There is a blind man. What is the minimum number of balls that the blind man has to pick to make sure that there are at least 2 balls of different colors?

48 balls. There is a small chance he may pick up 47 green balls in a row.

Place three matches on a table. Tell a friend to add two more matches to make eight.

Add two matches to make a roman numeral eight.

One brick is one kilogram and half a brick heavy. What is the weight of one brick?

One brick weighs 2 kilograms.

What did one math book say to another?

I have so many problems.

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

I must be 23 if my father is twice as old as me.

My daughter has many sisters. She has as many sisters as she has brothers. Each of her brothers has twice as many sisters as brothers. How many sons and daughters do I have?

Four daughters and three sons. Each daughter has 3 sisters and 3 brothers, and each brother has 2 brothers and 4 sisters.

In a bicycle race, the man who came two places in front of the last man finished one ahead of the man who came fifth. How many contestants were there?

There were 6 contestants. The man came in 4th place.

## Funny math riddles 5

If you’re 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

You will never reach the door, it will always be half the distance, no matter how small!.

An apple is 40 cents, a banana is 60 cents and a grapefruit is 80 cents. How much is a pear?

40 cents. The price of each fruit is calculated by multiplying the number of vowels by 20c.

I am four times as old as my daughter. In 20 years time I shall be twice as old as her. How old are we now?

I am 40 and my daughter is 10.

If two hours ago, it was as long after one o’clock in the afternoon as it was before one o’clock in the morning, what time would it be now?

nine

Sally is 54 years old and her mother is 80, how many years ago was Sally’s mother three times her age?

forty-one

If it is two hours later, then it will take half as much time till it’s midnight as it would be if it were an hour later. What time is it?

nine

Mom and dad have four daughters, and each daughter has one brother. How many people are in the family?

seven

What is half of two plus two?

three

In two years I know, I’ll be twice as old as five years ago, said Tom. How old is Tom?

12

How many 9’s are there between 1 and 100?

20

There is a three digit number. The second digit is four times as big as the third digit, while the first digit is three less than the second digit. What is the number?

141

Add me to myself and multiply by 4. Divide me by 8 and you will have me once more. What number am I?

Any number.

I am a number with a couple of friends, quarter a dozen, and you’ll find me again. What am I?

three

Have a great time with *funny math riddles* and don’t forget to share the laughter and mental stimulation with others!