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Math riddles

Math riddlesNumbers are something we learn as children. These are important since many of the world’s questions can actually answered with math. Math is very important in our world, without it we would not have such a great society we have. For all those who love math, I would like to present these amazing math riddles. What are you waiting for, go ahead and try to solve them.

Dan deals himself and his friend Mark some cards from a deck of cards (not the same amount). If Mark gives Dan some cards Dan will have 4 times as many cards as Mark If Dan gives Mark the same number of cards he will have 3 times as many cards as Mark.
How many cards does each man have and how many cards do they trade?
What did one math book say to the other?
A merchant can place 8 large boxes or 10 small boxes into a carton for shipping. In one shipment, he sent a total of 96 boxes. If there are more large boxes than small boxes, how many cartons did he ship?
There are several books on a bookshelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?
What is the smallest three digit palindrome divisible by 18? Can you solve this without a brute force examination of possibilities?
If you have 30 white socks, 22 black socks, and 14 blue socks scattered across the floor in the dark, how many would you have to grab to get a matching pair?

Five pirates are parting ways after finding a treasure of 100 pieces of gold. The pirates decide to split it based on a vote. Each pirate, from oldest to youngest, gets to propose a plan on how to split the gold.
If at least 50 percent of the other remaining pirates agree on the plan, that is how they will split the gold. If less than 50 percent of the pirates agree, the pirate who came up with the plan will be thrown overboard. Each pirate is smart, greedy, and wants to throw as many others overboard as possible without reducing the amount of gold they get.
What plan can the first (oldest) pirate propose to live and get as much gold as possible?

Can you solve all the Math riddles

Using only addition, how can you add eight 8's to get the number 1,000?
Does a ton of feathers or a ton of bricks weigh more?
As I was going to St. Ives,
I met a man with seven wives,
Each wife had seven sacks,
Each sack had seven cats,
Each cat had seven kits:
Kits, cats, sacks, and wives,
How many were there going to St. Ives?
What 3 positive numbers give the same result when multiplied and added together?
There are 100 passengers boarding a 100 passenger airplane. When passenger 1 gets onto the plane, he is dissoriented, so he randomly picks a seat. Each of the remaining passengers (2, 3, 4, etc.) get onto the plane and take their seat if it is available or picks one of the remaining seats at random if it is not.
What is the chance that the last passenger (passenger 100) will get his seat?
Little Dan is walking home. He has $300 he has to bring home to his mom. While he is walking a man stops him and gives him a chance to double his money. The man says I'll give you $600 if you can roll 1 die and get a 4 or above, you can roll 2 dice and get a 5 or 6 on at least one of them, or you can roll 3 dice and get a 6 on at least on die. If you don't I get your $300.
What does Dan do to have the best chance of getting home with the money?
What's the angle between minute hand and hour hand at a quarter past three?
There are two ropes that both take exactly 1 hour to burn from end to end. You are unable to cut the rope. How can you burn the two ropes in a total of 45 minutes?
There are 100 coins scattered in a dark room. 90 have heads facing up and 10 are facing tails up. You cannot tell which coins are which. How do you sort the coins into two piles that contain the same number of tails up coins?
Replace the question mark with mathematical symbols to make this equation work:
7 ? 7 ? 77 ? 7 ? 7 = 497
A rat is placed at the beginning of a maze and must make it to the end. There are four paths at the start that he has an equal chance of taking: path A takes 5 minutes and leads to the end, path B takes 8 minutes and leads to the start, path C takes 3 minutes and leads to the end, and path D takes 2 minutes and leads to the start.
What is the expected amount of time it will take for the rat to finish the maze?

Many more Math riddles

I know a number which when multiplied by multiple of 9 i.e 9 18 27 36 45 ... the output consist of number containing only one digit.
Can you identify the number ?

He just doesn't take the bet. This gives him a 100 percent chance of getting the money home. If he takes the bet with 1 die he has a 50 percent chance of winning. If he takes the bet with 2 dice he has about a 56 percent chance of winning. If he takes the bet with 3 dice he has about a 42 percent chance of winning.
There is a chain nailed to the wall. The chain is 10 feet long and the center of the chain dips down 5 feet from where each side of the chain is nailed to the wall. How far are the 2 ends of chain from each other?
What do you get if you add 3 to 300 five times?
If there are four apples and you take away three, how many do you have?
If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?
A claustrophobic person gets on a train. The train enters a tunnel just as it is leaving the station.
Where is the best place for him to sit?
When Robert was six years old he hammered a nail into his favorite tree to mark his height.
Five years later at age eleven , Robert returned to see how much higher the nail was.
If the tree grew by ten inches each year, how much higher would the nail be?
John has been hired to paint the numbers 1 through 100 on 100 apartments.
How many times with he have to paint 8?
5+3+2 = 151022
9+2+4 = 183652
8+6+3 = 482466
5+4+5 = 202541
7+2+5 = ?
You have a flashlight that takes 2 working batteries. You have 8 batteries but only 4 of them work.
What is the fewest number of pairs you need to test to guarantee you can get the flashlight on?
Replace the '?' by any mathematical symbol to make the expression equal to 99.
18 ? 12 ? 2 ? 3 = 111.
What number do you get when you multiply all of the numbers on a telephone's number pad?
Can you arrange four nines to make it equal to 100.
Mr. Smith has two children. If the older child is a boy, what are the odds that the other child is also a boy?
Divide 110 into two parts so that one will be 150 percent of the other. What are the 2 numbers?
You have a glass of water that looks about half full. How can you tell, only using the glass of water itself, if the glass is half full or not?
The glass is a right cylinder.
Large number of people went to an party and they decided to make some fun at the bar.
The first person asks the barman for half a pint of beer.
The second person asks for a quarter pint of beer
The third person asks for one-eighth of beer and so on.
How many pints of beer will the barman need to fulfill the people need of beer ?
What is 2+2x2=?
You have two books. One of them is upside-down and the other is rotated so the top of the book is facing you.
What is the sum of the first page in each book?

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Good for you, you made it to the end. Did you solve all of the math riddles? If so great job. I hope you like this category. I will of course add more math riddles if there is demand for them. In the meantime, I would like to direct your attention to all the other categories with riddles we have on this page. We also include jokes, quotes, insults and pickup lines. Have a good day.

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