Mathematics is a part of all our lives. Math can be a complex subject and difficult for a large part of the population, and math riddles are a way to engage them and encourage them to learn new skills and processes.
You don’t have to be a math whiz to challenge yourself with these riddles. We tried to provide some amazing answers to help you. If you pay some attention and apply critical thinking, and logical reasoning, you can easily crack these riddles. We’ve ranked them from easiest to hardest, so you can warm up to some math riddles and end up with a real head-scratcher.
Shorts Hard Math Riddle With Answers
Riddle Number 1:
What’s next in the series? 7,645 5,764 4,576 …
Riddle Answer:
6,457. The last digit is moved to the front to create the next number.
Riddle Number 2:
Can you combine 2 symbols and five 2 to get 28? Can you combine 8 plus 8 to get 1,000
Riddle Answer:
22 + 2 + 2 + 2 = 28; 888 + 88 + 8 + 8 + 8 = 1,000
Riddle Number 3:
Place three matches on one table. Ask a friend to add two more matches to make eight. How can this be done?
Riddle Answer:
Add two matches to make Roman numerals eight.
Riddle Number 4:
A boy has as many sisters as he has, but every sister has as many sisters as her brothers. How many siblings are there in the family?
Riddle Answer:
Four brothers and three sisters.
Riddle Number 5:
A 300-foot-long train travels at 300 feet per minute. It must pass through a 300-foot-long tunnel. How long will it take for the train to pass through the tunnel?
Riddle Answer:
Two minutes. It will take one minute at the front of the train and two minutes for the rest of the train to clear the tunnel.
Riddle Number 6:
What’s so significant about the 3661 seconds that past midnight on January 1, 2001?
Riddle Answer:
The time and date will be 01/01/01 to 01:01:01.
Riddle Number 7:
Tara has 29 dollars. she bought 4 color books for $ 3.00 each, and 4 boxes of Creola Creon for $ 2.00 each. She spends the rest of her money on markers. How much did he spend on markers?
Riddle Answer:
He spent $ 9.00 on the marker.
Riddle Number 8:
There are 14 brown socks, 14 blue socks, and 14 black socks in your sock drawer. How many socks do you have to remove (without believing) to have a matching pair?
Riddle Answer:
Four. You will have a pair of one or the other color.
Riddle Number 9:
What is the number of 4 digits in which the first digit is the fifth part of the last, and the second and third digits are multiplied by the last digit 3?
Riddle Answer:
1155.
Riddle Number 10:
Why are the 1999 ten-pound notes more than the 1993 ten-pound notes?
Riddle Answer:
Because there are more of them!
Read More Riddles With Answers
Defaults Hard Math Riddle With Answers
Riddle Number 11:
If you put 1 cake of soap and 3/4 cake of soap on one scale and weigh 3/4 pound on the other side, the balance of the pan is maintained. How much does a soap cake weigh?
Riddle Answer:
Since 1/4 cake weighs 3/4 pounds, and the whole cake weighs 3 pounds.
Riddle Number 12:
If 10 bags of jelly beans and 6 licorice sticks cost $ 1, and 10 licorice sticks and 6 jelly bean bags cost 92. How much does a liqueur stick cost?
Riddle Answer:
5 cents. The jelly bean bag costs 7 cents.
Riddle Number 13:
There are 6 floors in a house, each of the same height. How many times is the climb from the sixth floor to the third floor?
Riddle Answer:
2 1/2 times (5/2, not 6/3).
Riddle Number 14:
Two people in front of two people, two people behind two people, and two people with two people. How many people are there
Riddle Answer:
Four
Riddle Number 15:
A specific number has three digits. The sum of three digits is equal to 36 times that number. Seven times the left digit plus 9 is equal to 5 times the other two digits. The second digit minus 9 is equal to 8 times the first and third digits. What’s the number
Riddle Answer:
324
Riddle Number 16:
A duck was given 9 9, a spider 36 36, and a bee 27 27. How much will a cat be paid based on this information?
Riddle Answer:
$ 18 (4.50 per leg)
Riddle Number 17:
A non-stop train travels from Moscow to Leningrad at a speed of 60 miles per hour. Another non-stop train leaves Leningrad for Moscow at a speed of 40 miles per hour. How far are the trains 1 hour before they pass each other?
Riddle Answer:
100 miles (60 + 40)
Riddle Number 18:
I am a three-digit number. My tens digit is five more than my one digit. My hundreds are eight less than my tens. What number am I
Riddle Answer:
194
Riddle Number 19:
I asked a girl how old is she? “In 2 years, my age will double from 5 years ago,” he said. What is its age?
Riddle Answer:
12.
Riddle Number 20:
Jenny’s friends were coming to buy her a wedding shower. At first, 10 friends joined, but 2 of them left. Each of the 8 had to chip in another dollar to get the money back. How much money do they plan to raise?
Riddle Answer:
40(10 4 for 10, or $ 5 for 8)
Riddle Number 21:
There are many books on one bookshelf. If a book is 4th from left and 6th from right, how many books are on the shelf?
Riddle Answer:
9 books
Riddle Number 22:
Mary bought a round cake for her child’s birthday and saw 6 unexpected guests in the house. So he has to cut the cake into 8 pieces. Since her child was 3 years old, she insisted on making 3 cuts on the cake during the celebration. How can she make this possible?
Riddle Answer:
Consider the middle point of the cake in its vertical position. Cut horizontally until it reaches the same point again. This cuts the cake in half (two round cakes as if in a pile). The second cut is made vertically and passes through two round cakes. This makes 4 pieces of cake. Now make a horizontal cut in the same way by cutting the 4 pieces in half again so that it becomes a total of 8 pieces.
Riddle Number 23:
Amir has 2 buckets. The first bucket contained only red marble and the second bucket contained only brown marble. Two of these buckets have the same number of marbles. What can he do to increase the chances of catching red marble from each bucket?
Riddle Answer:
Put only one red marble in one bucket and the rest of the red and brown marble in the other bucket. This increases the chances of catching red marble from each bucket (approximately 75%) which is not possible with any other arrangement.
Riddle Number 24:
I have a certain number of books on my bookshelf. I picked up a book, sixth from right and fourth from left. Can you find the number of books on my shelf?
Riddle Answer:
9 ((6 + 4) -1. Or you just sort a set of 10 books and see how it works)