Math Riddles

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Math Riddles - we offer best online math riddles and brain teasers for kids and adults. 100+ math riddles to think out of the box.

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

Asked by Vinay on 23 Apr 2025


John drives to his office at 20km/hr. After reaching the office, he realizes that today is a holiday. He went back at an average speed of 30km/hr. Discounting the time spent in the stoppage what was the average speed of his journey?

Asked by Sachin on 21 Apr 2025

Find three numbers such that When we multiply three numbers, we will get the prime numbers. The difference between the second and the first number is equal to the third and second.

Asked by Sachin on 20 Apr 2025


There is a box. The area of its top is 240 square units, the area of the front is 300 square units and the area of the end is 180 square units.

Can you calculate the dimensions of this box with the given data?

Asked by Sachin on 19 Apr 2025

What is the largest number you can write with just 3 digits?

Asked by Ronit on 18 Apr 2025

In a competitive exam, each correct answer could win you 10 points and each wrong answer could lose you 5 points. You sat in the exam and answered all the 20 questions, which were given in the exam.
When you checked the result, you scored 125 marks on the test.

Can you calculate how many answers given by you were wrong?

Asked by Jeff on 08 Apr 2025


Can you think of any three-dimensional shape that comprises of exactly two surfaces?

Asked by Sachin on 27 Mar 2025

Chocolate costs 6 rupees and a Toy costs 5 rupees. If you have 32 rupees in total, how many chocolates and how many Toys can be purchased with that amount?

Asked by Sachin on 02 Mar 2025

All of Jacob's shoes are red except two.
All of Jacob's shoes are green except two.
All of Jacob's shoes are yellow except two.

How many shoes does Jacob have?

Asked by Sachin on 15 Feb 2025


Arrange the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 above and below the division line in a manner that the thus formed fractions equal to 1/3.

(You can use one number only once)

Asked by Sachin on 13 Feb 2025

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In 2011, people playing Foldit, an online puzzle game about protein folding, resolved the structure of an enzyme that causes an Aids-like disease in monkeys. Researchers had been working on the problem for 13 years. The gamers solved it in three weeks.