Find out about yourselfJoin Mensa nowBrowse our shop

Mensa Group

Were you previously a member? Rejoin

Are you a member of another National Mensa? Become a Guest member

Puzzle Competitions

October 2014

Challenge yourself with this Mensa branded portable hand held game, featuring Standard, Vegas or Timer versions of Solitaire.

We have TWO to give away in our free online competition. To enter the contest simply solve the brain teaser and submit your answer and contact details in the form at the bottom of the page. Good luck!

What number should replace the question mark


Please click here to submit your entry

This competition closed on: 31 Oct 2014
01 Nov 2014
Reveal answer

2. Along each row the first number plus the second number gives the third number and the third number divided by the fourth number gives the fifth number.

J Johnson, Dagenham and L Kennedy, Cleveland