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 Politicians

There is a party of 100 politicians. All of them are either honest or liars. You walk in knowing two things:

  1. At least one of them is honest.
  2. If you take any two politicians, at least one of them is a liar.

From this information, can you know how many are liars and how many are honest?

Riddle Answer

Product of Age Is 72

Two old friends, Jack and Bill, meet after a long time.

Jack: Hey, how are you man?
Bill: Not bad, got married and I have three kids now.
Jack: That’s awesome. How old are they?
Bill: The product of their ages is 72 and the sum of their ages is the same as your birth date.
Jack: Cool… But I still don’t know.
Bill: My eldest kid just started taking piano lessons.
Jack: Oh now I get it.

How old are Bill’s kids?

Riddle Answer

Daniel and Jessica Age

Daniel, my son, is exactly one fifth of my age. In 21 years time, I will be exactly twice his age. My wife is exactly seven times older than my daughter, Jessica. In 8 years time, my wife will be three times older then Jessica. How old are Daniel and Jessica now?

Riddle Answer