Math riddles and puzzles are based on the basic concepts of algebra, arithmetic, ratio & proportion, time & distance, probability, etc. Here is a compilation of different mathematical puzzles grouped into easy, medium and hard maths puzzles with answers. This article contains a set of 10 arithmetic and algebra puzzles with answers. In this set, you will come across hard math puzzles devised to hone your mental aptitude.

ZYX/3 = LQ, PQR/6 = LQ, JKL/9 = LQ

Note that the same number must be used for the same letter whenever it appears.

First Son to get 1/2 of the dogs, Second Son to get 1/3rd of the dogs & Third Son to get 1/9th of the dogs. The sons are sitting there trying to figure out how this can possibly be done, when a very old wise man goes riding by. They stop him and ask him to help them solve their problem. Without hesitation he divides the dogs properly and continues riding on his way. How did he do it?

There is one statement written on the cover of each box.

* Yellow Box: Both, a yellow box and a orange box contain Rs. 100000 each.

* Black Box: Both, a black box and a yellow box contain Rs. 250000 each.

* Orange Box: Both, a orange box and a black box contain Rs. 150000 each.

Only one of the above 3 statements is true and the corresponding box contains the maximum amount.

Can you tell which box contains the maximum amount and how much?

How many men engineers, women engineers and diploma holders were working with the company?

How much money did the restaurant lose? Ignore the profit of the food restaurant.

Mathematical Puzzles: Practice Exercises