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Tim Sole

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Stand Alone

Nearly impossible brain bafflers
Almost impossible brain bafflers
Make Success Your Friend
You'd Better Be Really Smart Brain Bafflers (Mensa)
The Ticket to Heaven and Other Superior Puzzles
Spécial casse tête extrême
Brain Boost Strengthen Your Mind, Power and Memory
Giant Book of Mensa Mind Challenges
The Strange and Infinite World of Numbers