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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?

17/12/2025 – Home Alone

In a survey, 3/5 of adults and 5/12 of children said they had seen the Christmas film “Home Alone.”

If an equal number of adults and children have seen the film, what is the smallest number of people that could have been surveyed?

 

Puzzle courtesy of Mensa member Peter Hooton

  • Show Answer

Answer = 61 people

Common numerator = 15

Denominators = 25 + 36 = 61

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