This book is an entire book dedicated to riddles, puzzles, and games found in Mathematics. Topics such as algebra, geometry, puzzle games, magic square problems, crossing river problems, measuring, weighing, and packing puzzles are included in this book. This book also comes with a complete solution guide for each problem.
I decided to choose a couple of problems throughout the book and attempt to solve them.
#424: The Dovetailed Block
This problem shows the following photo.
Below is an example I found, that is similar to the solution in the back of Dudeney's book.
#246: Visiting the Towns
This problem gave the diagram shown below.
Below is my work for this problem. I began by re-arranging the numbers so that there was more of a clear path to travel and finished to conclude that there is only one pathway the traveler can take.