So how long is a two-minute? Many of the puzzles found in here seem to take much longer to solve. Yet, most, if not all, have a shortcut, that presents a faster way to solve it. This is the cause of the Ahh-ha! feeling you get when you solve it quickly. This book includes nine chapters; where each is devoted to the number in the title. We have created, gathered and sorted the puzzles and riddles from all the various fields accordingly. In the second chapter, you can find mechanical puzzles with double pieces, riddles about couples, line puzzles and more! We have match puzzles, tangram related ones, paper puzzles, geometric puzzles and mathematical puzzles. Some are based on pure logic; some are asking for intuition — but all are two minutes away from a solution. As with our previous books, we try to bring a fresh and original look, as most of the puzzles are coming from our heads. Yet, some good all classics are here as well, as we couldn’t ignore them. We did try to present them in an original way, by adding our own flavor to it. This book tries to train the brain to see and think creatively. Looking for a bypass, finding a different point of view, rephrasing the question to surface a solution! In a way, this book can sharpen the mind, and help solve real-life problems. It’s time to flex your brain! Key Features: ○Many new and original puzzles with in-depth solutions ○Suitable for all ages and levels ○Both educational and fun; highly challenging puzzles

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