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Daily Telegraph enigmatologist, Barry R. Clarke, presents over 120 fiendish problems that will test both your ingenuity and persistence. Between these covers are puzzles in geometry, arithmetic, and algebra (there is even a section for computer programmers).

Daily Telegraph enigmatologist, Barry R. Clarke, presents over 120 fiendish problems that will test both your ingenuity and persistence. Between these covers are puzzles in geometry, arithmetic, and algebra (there is even a section for computer programmers).

Intriguing collection features recreational math, logic, and creativity puzzles. Classic and new puzzles include The Monty Hall Problem, The Unexpected Hanging, The Shakespeare Puzzles, and Finger Multiplication.

With a Foreword by Sir Mark Rylance, this meticulously researched and penetrating study is a thought-provoking read for the inquisitive student in Shakespeare Studies.

In 1861, James Clerk-Maxwell published Part II of his four-part series 'On physical lines of force'. In it, he attempted to construct a vortex model of the magnetic field but after much effort neither he, nor other late nineteenth century physicists who followed him, managed to produce a workable theory. What survived from these attempts were Maxwell's four equations of electrodynamics together with the Lorentz force law, formulae that made no...

With a Foreword by Sir Mark Rylance, this meticulously researched and penetrating study is a thought-provoking read for the inquisitive student in Shakespeare Studies.

Are you ready to stretch your brain? This book will do just that, with a wide variety of logical puzzles to test your mental reasoning skills.

These challenging logic puzzles will reveal if you are a supergenius! Each one tests your mental reasoning skills in a different way.

51 original puzzles include complex crosswords, a collection of amusing stories with a series of clues that lead to a single solution at the end, and an advanced series of math and logic puzzles -- no skills beyond high school algebra needed. Most puzzles include hints, solutions are provided for all.

Lets you test your wits with these tough logic puzzles. This title comes with tantalizing setups and lists of clues that lead your detective work. It features challenging conundrums that give you a setup and a list of clues, but you'll need every drop of logic to unravel the who, what, when, where and why.

In 1861, James Clerk-Maxwell published Part II of his four-part series "On physical lines of force". In it, he attempted to construct a vortex model of the magnetic field but after much effort neither he, nor other late nineteenth century physicists who followed him, managed to produce a workable theory. What survived from these attempts were Maxwell's four equations of electrodynamics together with the Lorentz force law, formulae that made no...

So, you think you've got the brain-power to tackle tough logic puzzles? Well, try this extraordinary assortment of challenges, including Mix-and-Match logic puzzles and "Find the Liar" type puzzles. Some puzzles have tables that can be used to deduce relationships between people or items, some use word-play to present the problem, and still others use illustrations to highlight the challenge. Whatever their form, each is designed to stretch yo...

Are you one of the millions of people throughout the world that are fascinated by puzzles, conundrums and brain teasers? If so then you will want this collection of amusing twisters from Barry Clarke. Based on his extensive experience of writing for the Daily Telegraph, Sunday Times and New Scientist, Clarke has gathered together a variety of posers, together with hints and full solutions. Several examples of a brand new type of puzzle, The Wo...