Math Riddles

These Math Riddles are based on math concepts and can be solved with a bit of math and logic. These fun riddles can surely give you a tough time.

100 Houses

There are five people who can build five houses in just five days. Increase the amount of people to 100. How long would it take these 100 people to build 100 houses?

Riddle Answer

Four Weights

What four weights can be used to balance from 1 to 30 pounds?

Riddle Answer

Read Hexadecimal

How many people can read hexadecimal if only you and DEAD people can read it?

Riddle Answer

Prince and Princess

A princess is as old as the prince will be when the princess is twice as old as the prince was when the princess’ age was half the sum of their present age. What are their ages?

Riddle Answer

Ship and Boiler

A ship is twice as old as its boiler was when the ship was as old as the boiler is now. What is the ratio of the boiler’s age to the ship’s age?

Riddle Answer