In this book, there are 150 unique puzzles and solutions of 16 different categories. Each puzzle is unique. These are nowhere to be found.All my own production, 150 puzzles with characters numbers, geometric, mathematical, logic and will delight readers of all ages. Puzzles in this book, illustrated, all different figure, different size and with different levels of difficulty. Some are easy, some are hard some are very difficult. They are very entertaining and easy rules and easy to understand.My puzzles improve the following abilities of people, for example: -comparison -argumentation -focusing -Troubleshooting -Create a solution – motivate -independence -Scientific thinking and research, cause-effect relationship etc.For people my puzzles is fun, very challenging, educational, scientific and protects against stress, keeps the brain young. It is very helpful for all.I think Puzzle-Lover of all ages will love my puzzles very much. They are very entertaining.Have fun Author
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