books by subject
Brain Teaser Games
The Mensa Mind Assault Course
So You Think You Know: So You Think You Know the 80s?
Pokémon Brain Teasers
Laughter - the Best Medicine / Quotable Quotes / Word Power Quiz Book (Boxed Set)
This Book
400 IQ Puzzles (Boost Your Brainpower)
The Times Book of IQ Tests: Book Four (Testing Series)
How to Solve IQ Puzzles: Boost Your Brain Power
Knotted Doughnuts and Other Mathematical Entertainments
Sunday Telegraph Book of Quick Crosswords 6: No.6
The Senior Moments Activity Book: Restore Your Brain to Its Tack-like Sharpness
The Daily Telegraph Quick Crosswords 46
Crosswords (Best Ever 160 Pb)
Chambers Official Scrabble Words (OSW)
Scrabble Puzzles (Chambers)
The Joy of X: A Guided Tour of Mathematics, from One to Infinity
Sunday Express Crossword Dictionary
Tangrams: 330 Puzzles (Dover Recreational Math)
Math Hysteria: Fun and Games with Mathematics
Concise Crossword Dictionary (Pocket reference library)
Large Print Brain Training
Junior Su Doku
General Knowledge Genius!: A Quiz Encyclopedia to Boost Your Brain
Brain-Teasing Crosswords (Crossword Spiral S.)
Pears Ultimate Quiz Companion: 2nd Edition (Penguin Reference Books S.)
The Ultimate Unicorn Joke Book (Humour)
A Certain Je Ne Sais Quoi: Words We Pinched From Other Languages (I Used to Know That ...)
Games: French Grammar Puzzles: Crossword Puzzles for Reinforcing and Reviewing Grammar
Bamber Gascoigne's Challenging Quiz Book
