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, all illustrated, all different figure, different size and with different levels of difficulty.

WORLD'S GREAT SCIENTIFIC PUZZLES BOOK:

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..