books by subject
Brain Teaser Games
IQ Puzzles
Brain Boosting Visual Logic Puzzles (Puzzle Books)
Brain Boosting Cryptic Puzzles (Puzzle Books)
Brain Boosting Lateral Thinking Puzzles (Puzzle Books)
Tremendously Tricky IQ Puzzles
How Many Socks Make a Pair?: Surprisingly Interesting Maths
Great Britons: 100 Pocket Puzzles: Crosswords, wordsearches and verbal brainteasers of all kinds
Sudoku X: The Only Puzzles with the 'x' Factor: 1st
Big Book of Rebus Puzzles
Impossible Worlds: Adventures With Impossible Objects / Optical Illusions (Evergreen Series)
The Floor is Lava: and 99 more screen-free games for all the family to play
The Ultimate Psychometric Test Book
The Little Book of Big Brain Games: 517 Ways to Stretch, Strengthen and Grow Your Brain
Go Figure
The Imperial War Museums Code-Breaking Puzzles: Can you crack the wartime codes?
Ripley’s Believe It or Not! 2019 (Annuals 2019)
The Riddler: Fantastic Puzzles from FiveThirtyEight
Weird but true! 2020: wild & wacky facts & photos! (Weird but true)
Ian St John's Book of Soccer Lists
The Turing Tests Expert Brain Training Puzzles: Foreword by Sir Dermot Turing (The Turing Tests, 7)
The Times How to Crack Cryptic Crosswords
Bradford's Guide to Solving Crosswords: Cracking the Code
Chambers Crossword Dictionary, 2nd edition
So You Think You Know Jane Austen?: A Literary Quizbook (Oxford World's Classics)
MONTY HALL PROBLEM OTHER PUZZLES (Mastermind)
Eight Days a Week: Puzzles, Problems and Questions to Activate the Mind
Mathemagic: Magic, Puzzles and Games with Numbers (Dover Recreational Math)
The Penguin Book of Word Games
Where's The Meerkat? Journey Through Time
