If you love classic logic puzzles, you know how hard it is to find good ones. Thankfully, the folks at "mental_floss"--the popular trivia magazine--have come to the rescue with a topnotch book of 72 puzzles that will flex your logical reasoning to the max. Each puzzle comes with a grid to mark your deductions, so put on your thinking cap and start solving. And don't worry if you have to erase your answers; the high-quality paper won't rip

Sum-thing big is on the horizon Kakuro puzzles (also known as cross sums) are like a combination of crosswords and sudoku: each clue in the grid tells you the sum of the digits in its answer, and just like sudoku, digits are never repeated within an answer. From this simple premise, extremely challenging puzzles can be constructed, and that’s just what Conceptis Puzzles has done for these collections, which each contain 72 supersized kakuro, offering massive solving pleasure for the brave souls who love tackling such challenges.

For centuries logic puzzles have entertained, inspired an educated kids of all ages Studies have shown that these engaging 'brain teasers' provide unsurpassed benefits to the body and mind, increasing manual dexterity, mathematical abilities and overall intellectual agility. "Crafting Wood Logic Puzzles" provides plans and instructions for crafting 18 of the most popular manual puzzles. Projects range from traditional 'out together / take apart' games like pentominoes and soma cubes to more sophisticated 'unlocking' head-scratchers, such as the Burr and Heart Box puzzles. Readers will also learn specialised cutting, drilling, sanding, gluing and finishing techniques that make crafting wooden puzzles possible.

All aboard the puzzle train! This book is fully loaded with 200 railway-themed puzzles, perfect for aficionados as well as inquisitive commuters More than just a means of transport, trains have changed the world. Across centuries and continents, they've been unstoppable. But when you're sitting back in your seat on a long rail journey, why not pause for a puzzle or two? From quick quizzes and riddles to more leisurely crosswords and sudoku, whether you're a locomotive obsessive or just enjoy the occasional trip, there's plenty in these pages to fire up your mental furnace and keep you going full steam ahead to the end of the line. Inside you will find a rich variety of puzzles, including these: Find the names of world-famous locomotives within word searches Shuffle the letters of anagrams to identify essential railway paraphernalia Guess the meaning of some technical train-related terms Figure out what happened during strange-but-true incidents from railway history