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A discussion of the human side of science, originally published in 1981.
Fun for the whole family, the book contains more than 100 superb puzzles. Merlin the Magician, Avalon, King Arthur, and other mythical people and places feature prominently.
Puzzlers will feel fit to be tied - Dog Tied: If Fido is tied to a 10-foot-long rope, and his bone is 15 feet away, how is it possible that he can reach and enjoy his bone without breaking or stretching the rope? (And yes - the rope IS tied to something.) There's fun in finding the answer to this and other cool number-based problems. Dust off your mathematics and get solving. The intriguing enigmas include questions on interstellar communications, ancient geometry (Pythagoras and Plato), and even traffic patterns in gridlock city. Or play the grasshopper jumping game. It's all fascinating.
My mind rebels at stagnation. Give me problems, give me work, give me the most abstruse cryptogram or the most intricate analysis, and I am in my own proper atmosphere. -Sherlock Holmes, The Sign of the Four. Pit your wits against the greatest detective of them all with this collection of over 130 fiendish and hugely entertaining puzzles and enigmas.Some involve riddles, some plays on words, and some rely on mathematical principles. Use your powers of logical deduction, and see if you can match the towering intellect of Sherlock Holmes. Not only does this collection include brilliant puzzles to ponder over, but it presents these quandaries within exchanges between Holmes and Watson. In this way, this puzzle book retains the same cosy Victorian charm that Holmes' tales are so loved for. Featuring the original pen and ink illustrations by Sidney Paget and George Hutchinson, this gorgeously designed puzzle book will immerse you in Holmes's mysteries and keep you entertained for hours!
Containing over 100 exercises, Number Enigmas challenges even the cleverest number crunchers. For fun or for sport, these puzzles are perfect for car trips or airplane rides or even to find out who is the real puzzle wizard in the family. Puzzlers used to those old-fashioned black-and-white enigmas will be happy to move up to this techno-colorful puzzle book.
This Book of Riddles is loaded with new and classic mind bending logical conundrums, number puzzles, visual tricks, and more fun for the whole family.
A treat for the eye as well as the mind,these beautifully designed and intellectuallystimulating challenges werecreated by one of the world’s mostinnovative puzzlemakers. Sprinkledwith popular science factoids, 85visual puzzles include several classicsattributed to important mathematiciansand philosophers, including Galileo,Fibonacci, Foucault, Rott, Cantor,Sierpinski, and Aristotle. Solutions.Reprint of the Sterling PublishingCompany, New York, 2006 edition.
Codex Enigmatum is a richly illustrated puzzle book, filled with a diverse mix of unique and interrelated brain teasers, riddles and conundrums. It features many one-of-a-kind escape room type puzzles designed specifically for this book, as well as unconventional twists on well-known puzzle genres. Each puzzle solution yields a key to unlock future puzzles and in order to unlock the secrets of the codex, you will need to quest your way through over 60 varied and eccentric enigmas requiring a combination of lateral thinking, logical deduction, spatial reasoning and pattern recognition. Are you up to the challenge?
** WINNER OF 'STOCKING FILLER OF THE YEAR AWARD' GUARDIAN ** Pit your wits against the people who cracked Enigma in the official puzzle book from Britain's secretive intelligence organisation, GCHQ. 'A fiendish work, as frustrating, divisive and annoying as it is deeply fulfilling: the true spirit of Christmas' Guardian 'Surely the trickiest puzzle book in years. Crack these fiendish problems and Trivial Pursuit should be a doddle' Daily Telegraph If 3=T, 4=S, 5=P, 6=H, 7=H ...what is 8? What is the next letter in the sequence: M, V, E, M, J, S, U, ? Which of the following words is the odd one out: CHAT, COMMENT, ELF, MANGER, PAIN, POUR? GCHQ is a top-secret intelligence and security agency which recruits some of the very brightest minds. Over the years, their codebreakers have helped keep our country safe, from the Bletchley Park breakthroughs of WWII to the modern-day threat of cyberattack. So it comes as no surprise that, even in their time off, the staff at GCHQ love a good puzzle. Whether they're recruiting new staff or challenging each other to the toughest Christmas quizzes and treasure hunts imaginable, puzzles are at the heart of what GCHQ does. Now they're opening up their archives of decades' worth of codes, puzzles and challenges for everyone to try. In this book you will find: - Tips on how to get into the mindset of a codebreaker - Puzzles ranging in difficulty from easy to brain-bending - A competition section where we search for Britain's smartest puzzler Good luck! 'Ideal for the crossword enthusiast' Daily Telegraph
The renowned provocateur of popular math presents a collection of his widely recognized short puzzles--along with a few new ones--that explore chess, physics, probability, and topology, among other topics.