So You Think You've Got Problems?: Surprising and rewarding puzzles to sharpen your mind

The Canterbury Puzzles and Other Curious Problems

The Language Lover's Puzzle Book: Lexical perplexities and cracking conundrums from across the globe

The GCHQ Puzzle Book: Perfect for anyone who likes a good headscratcher

Alex Through the Looking-Glass: How Life Reflects Numbers, and Numbers Reflect Life

The Moscow Puzzles: 359 Mathematical Recreations

How to Solve It: A New Aspect of Mathematical Method

Alex's Adventures in Numberland: Dispatches from the Wonderful World of Mathematics

536 Puzzles and Curious Problems

Think Twice: Simple puzzles (almost) everyone gets wrong

Logically Fallacious: The Ultimate Collection of Over 300 Logical Fallacies (Academic Edition)

The Gödelian Puzzle Book: Puzzles, Paradoxes and Proofs

Fast Math: Learn the Secrets of Mental Math: By Using Vedic Math and Other Math Tricks to Perform Mental Calculations from Multiplication to Percentages without Calculators

Mathematical Puzzles and Curiosities

An Illustrated Book of Bad Arguments: Learn the Lost Art of Making Sense

Foundations and Fundamental Concepts of Mathematics

Logic: A Very Short Introduction: Edition 2

That's Maths: The Mathematical Magic in Everyday Life

My Best Mathematical and Logic Puzzles