Quick Sudoku

The Million Word Crossword Dictionary

Sudoku Secrets Unlocked - Easy Tricks

So You Think You've Got Problems?

Surprising and rewarding puzzles to sharpen your mind

Master Sudoku

Teach Yourself

Mindbending Sudoku

Flash

Quick Sudoku

Flash

MODUS FORTIS Sudoku Logic, Sudoku Reason

PIXEL ART SUDOKU

101 Unique Sudoku Puzzles for Adults [E Ink - Writing-enabled Ereaders Only]

5 Minute Murder

100 addictive crime mystery puzzles for logical sleuths

The Twelve Murders of Christmas

The Sun Pub Quiz

4000 quiz questions and answers

Puzzles, Games, and Tricks

Understanding the Mystery and Magic of Numbers

Vintage Games with Letters and Numbers

The GCHQ Puzzle Book

Perfect for anyone who likes a good headscratcher

The Canterbury Puzzles

The Penguin Book of Puzzles

Solve these wonderfully perplexing logic puzzles

Brain Games

Brain Teasers, Logic Tests, and Puzzles to Exercise Your Mind

Mindbenders and Brainteasers

100 Maddening Mindbenders and Curious Conundrums

Mathemagic Puzzles And Brain Drainers

Puzzles and brain games to keep your mind sharp and refreshed

Road To Health Care

All that you need to stay fit & healthy

Rod'S Sudoku Tutorial

The Penguin Book Quiz

From The Very Hungry Caterpillar to Ulysses - The Perfect Gift for Book Lovers!

The GCHQ Puzzle Book II

Solve more than 100 brilliant brainteasers

The Ultimate Mathematical Challenge

Over 365 puzzles to test your wits and excite your mind