Become a member

My Mensa
Become a member
My Mensa
9109_Mensa_80 logo_FINAL
Facebook Twitter Linkedin

Puzzles

One activity that many of our members enjoy is puzzling! You can test yourself for fun with our brainteasers. Our quizzes and conundrums are updated regularly, so do check back on the page for the latest content, and if you get really good at them, why not find out what your IQ is by booking a Mensa Supervised IQ Test?

13/11/24 – Guess My Age

I have two sisters.

One is three years older than me.

The other is half my age.

In five years’ time our combined ages will be 38.

How old am I now?

Puzzle courtesy of Mensa member Peter Hooton

  • Show Answer

I am 8. In five years time the combined age is 38. So currently the combined age is 23.

Let my age = a.
a + a + 3 + 𝑎/2= 23; 2 1/2a= 20; a = 8.

Puzzles for business use

We are also able to supply puzzle content to businesses, tailored to your needs. This can range from one-off media projects for marketing campaigns and content for newspapers, magazines and company websites, to long-running partnerships and licensing agreements.

Find out more by contacting our marketing team, via: communications@mensa.org.uk