This fascinating compilation of seventy puzzles is derived from the well-liked weekly feature in New Scientist magazine. You'll find games with captivating methods, puzzles with such inventive and quirky tales that you have to hear them told to believe them, issues based on real-life scenarios, and puzzles that are perfect for sharing with friends over a drink.You can read the untold backstories of the riddles and an intriguing investigation of related puzzles and mathematical concepts with the solutions. You'll discover why a certain puzzle adaption required speaking with a sheep genetics expert, which answer was devised by the BBC Radio 5 Drive team, and unconventional solutions to problems that at first glance appear to be simple. Anybody who like puzzles or recreational mathematics should read this book.