Book of Donmon Teith

It's only logical--boost your brainpower with 150 logic puzzles for adults. It's time to give your mental muscles a real workout! Stuffed full of clever and cun

How well do you think logically? Find out with these puzzles. But don't forget the degree of difficulty increases as you go.

Get your brain working with 200 grid-based logic puzzles from the Puzzle Baron! Filled with complex and fun brain teasers that range in difficulty, this book wi

Welcome to the wonderful world of puzzles! This book contains 50 logic grid puzzles. Your task is to read the backstory and the clues, and then figure out the c

Give your brain a workout on the type of brainteasers that challenge the best solvers at the World Puzzle Championships. They're tough, but fun, and the feeling