The Canterbury Puzzles and Other Curious Problems

Mystifying Mathematical Puzzles: Golden Spheres, Squared Eggs and Other Brainteasers

The Big Brain Puzzle Book

The Moscow Puzzles: 359 Mathematical Recreations

The Gödelian Puzzle Book: Puzzles, Paradoxes and Proofs

Can You Solve My Problems?: A casebook of ingenious, perplexing and totally satisfying puzzles

Math Tricks: The Surprising Wonders of Shapes and Numbers

Mathematical Puzzles and Curiosities

My Best Mathematical and Logic Puzzles

How to Solve It: A New Aspect of Mathematical Method

A Dictionary of Logic

Problem Solving Through Recreational Mathematics

Math Storm Olympiad Problems

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

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

A Beginner's Guide to Mathematical Logic

The Stanford Mathematics Problem Book: With Hints and Solutions

A Transition to Advanced Mathematics: A Survey Course