# WORLD BEST-SELLER # The Spanish version of this book has been a best-seller in USA, Spain, Mexico, and Brasil. (Spanish name: 75 fantásticos acertijos de lógica) #1 BEST-SELLER foreign-language ebook in USA.#1 BEST-SELLER ebook in USA Logic & Brain Teasers category.#1 BEST-SELLER in Spain Logic & Brain Teasers category.#TOP5 BEST-SELLER Spain ebook during two months.#1 BEST-SELLER in Logic & Brain Teasers category.#1 BEST-SELLER in BrasilLogic & Brain Teasers category. Why is this book so famous? Because it's extremely fun! This book invites you to challenge your intelligence and boost your ability to think in different manners. You'll have to try out every part of your intelligence: sharpness, imagination, insight, deduction, creativity, memory... Hundreds of thousands of people have already enjoyed this around the world, will you? About the format This book has been adapted for an optimal experience on your Kindle. Each riddle occupies a different page, and answers are separate from puzzles for the best experience. Access to the answer is as simple as clicking on the link: "Go to the answer." About difficulty The book mixes riddles and logic puzzles of varying difficulty, from easy to very tough. But in all of them, even in the easiest one, the answer it is not immediate and requires some thinking. _______ Related tags: puzzles, hobbies, brain teasers and puzzles, riddles, mind games, puzzles, brain training, books for adults, riddles, riddles for children, riddles and puzzles, answers, puzzles and games, english, minecraft, chess, poker.