内容介绍：

世界上最难的脑筋急转弯，喜欢脑筋急转弯的朋友不要错过！~

Through the exclusive, acclaimed Gruber Method for critical thinking and problem solving, you'll discover how even the world's toughest logic and reasoning puzzles can be easily solved with an expert approach. Each brain-teasing question will be given a detailed, explanatory answer from Dr. Gary Gruber, highlighting the particular strategy that gets you to the right answer, such as: pay attention to the wording and don't assume anything; translate from English to math so you don't rack your; and, don't get lured into a superficial problem-solving process.

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