Prove your logical and arithmetical prowess by solving the exceptionally tricky problems in Mensa's Most Difficult Number Puzzles. This full-colour book features a huge variety of numerical conundrums that are certain to test even the most adept of puzzlers. Some puzzles – such as sum skyscraper and calcudoku – will test your mental maths, while others – such as touchy and bridges – will provide a trial for your logical and lateral thinking. Are you up to the fiendish challenge?

Test yourself against a fiendishly tricky series of IQ test-style puzzles, the perfect training for those who want to prepare for a Mensa IQ test. This full-colour puzzle book features a wide variety of questions to test every aspect of your brain's workings, from visual and spatial challenges to pattern-based or logical problems. Compiled by Dr Gareth Moore, Mensa's Most Difficult IQ Puzzles will force you to think in new ways and spot patterns you have never seen before in order to solve these demanding conundrums.

Improve your mind's power and unlock your full potential with the first in Mensa's new brain-training series. This full-colour book guides you through eight chapters, each focussed on a different aspect of your brain's ability to concentrate, from creativity and problem-solving to lateral and logical thinking. Every chapter takes you through the science behind how your brain works, gives instruction on how to improve your concentration skills, and provides you with a series of puzzles and exercises to get you started on your brain-training journey!

Improve your powers of memory and recall and unlock your full potential with this brand-new title in Mensa's brain-training series. This full-colour book guides you through eight chapters, each focussed on your memory, how it works, and how you can both maintain and improve it. From tricks of visualisation and linking to mnemonics and mind palaces, as you progress your memorization skills will improve in both the short and long-term. The book will take you through the science behind memory, give instruction on how to improve yourself, and provide you with a series of puzzles and exercises to get you started on your memory-improving journey!

How to Excel at IQ Tests is a complete practical course in how to boost your IQ score. It starts by explaining exactly what IQ is and how it is measured. Then moves through some of the most common types of IQ questions and how they work. You will be trained to increase not only your accuracy but also, vitally, your speed (which is the key factor in attaining a high score). It also gives you valuable tips on test strategy (there are plenty of people who get poor scores just because they panic and don't know the basic rules for taking an IQ test). Written by people who have unique experience of the highly intelligent; it could help you to join them. Contents: A series of IQ-style tests with the aim of specifically improving various aspects of your problem solving and pattern recognition. All solutions and explanations are supplied, as well as details and tips on how to get the best score you can.

More than 200 variations of the world's favourite puzzle have been created to test your Sudoku skills. The revered intelligence organisation, Mensa, have worked with Gareth Moore to put together a supreme test of logic. These brand-new puzzles will provide hours of entertainment for anyone who enjoys mental gymnastics. As well as traditional Sudoku, many varieties such as Samurai Sudoku and 3D Sudoku have been included to provide a further stern examination.

The book contains a series of workouts specifically designed by Mensa's finest puzzle setters to stretch and mould your mind muscle. There are 20 tests consisting of 40 puzzles each, focussing mainly on logic puzzles both traditional and non-traditional, from Skyscrapers and Number Pyramids to more exotic puzzles like Kropki and Hashi. Mensa Test Your Mind has exactly what you need to make your brain healthier, fitter and faster - leading to benefits in all areas of your life.

Test your powers of deduction against more than 200 devilishly difficult Killer Sudoku puzzles. The revered intelligence organisation, Mensa, have worked with Gareth Moore to put together a supreme test of logic. These brand-new puzzles will provide hours of entertainment for anyone who enjoys a difficult mental challenge.

More than 100 crosswords of a variety of difficulty levels, perfect to test your lexical abilities against. The revered intelligence organisation, Mensa, have worked with Gareth Moore to put together this rigorous examination of your vocabulary skills. These brand-new puzzles will provide hours of entertainment, with a mixture of crosswords across a wide variety of topics ensuring that you will need to use a wide range of knowledge to solve them all.

Mensa's Most Difficult Pattern Puzzles provides an exceptional challenge for even the most adept of puzzlers. Your mind will need to be at its most nimble to spot the patterns and crack the colourful codes hidden within these conundrums. With puzzles ranging from spatial awareness challenges to colour hue conundrums, this vibrantly fiendish puzzle book will keep you entertained for hours.

Designed by some of Mensa's most cunning minds, this is a brain-training interactive puzzle pack crammed full of games and conundrums of many varieties, certain to challenge your linguistic and numerical abilities.

The Mensa Brain Games Pack contains a range of different activities, including eight separate games, so you'll be able to enjoy it again and again, on your own or with your family and friends. With a range of fiendish questions to enthral puzzlers of every level of ability, this a great purchase for anyone looking for a new challenge.

Mensa Brain Games Pack contains:

• Puzzle cards
• Board
• Counters
• Dice
• Fully illustrated book

Mensa's Most Difficult Logic Problems provides an exceptional challenge for even the most adept of puzzlers. Sound reasoning and logical thinking are foundations of all types of puzzle solving, and you will need to be first-rate at both to work these conundrums out successfully. With classic logic puzzles like Sudoku to tricky narrative lateral thinking-style puzzles, this colourful puzzle book will keep you entertained for hours.

Mensa's Most Difficult Geometric Puzzles provides an exceptional challenge for even the most adept of puzzlers. The high IQ society's most ingenious puzzle setters have created a series of conundrums to stretch your spatial awareness and mathematical dexterity. With puzzles ranging from area mazes to trigonometric conundrums, this colourful puzzle book will keep you entertained for hours.

Mensa's Most Difficult Maths Tests provides an exceptional challenge for even the most adept of puzzlers. This full-colour book features a huge variety of numerical brainteasers that will test even the most mathematical of minds. With puzzles ranging from the familiar – such as kakuro and killer sudoku - to the exotic – such as sum skyscraper and calcudoku – this fiendish puzzle book will keep you entertained for hours. Are you up to the challenge?

The Mensa Big Brain Workout has been compiled by some of the world's most renowned puzzle writers. It contains more than 500 challenging puzzles of a huge variety, from word and number puzzles to logic problems, spatial problems and lateral thinking puzzles with three different levels of difficulty. Although Mensa puzzles are challenging, they remain accessible to the average reader. You don't have to be the possessor of a high IQ to solve them - all you need is a bit of logic and a lot of persistence.

Challenge yourself against this varied compilation of more than 200 puzzles designed to test your brainpower to its limit. The revered intelligence organisation, Mensa, have worked with Gareth Moore to put together a supreme test of reasoning. These brand-new puzzles will provide hours of entertainment for anyone who enjoys a rigorous mental workout. With a wide variety of traditional and non-traditional logic puzzles, from Battleships and Masyu to Slitherlink and Skycraper, you will find a fresh challenge on every page.