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A set of activity cards to unleash the inner code-breaker in all of us. It contains a combination of codes such as Semaphore and Morse code, as well as historical codes including the 'Grid code' used in the American Civil War and Ancient Egyptian hieroglyphics and traditional codes such as number replacement and alphabet switching codes.

Featuring mazes and logic problems to solve, wordsearches, codes to crack, number puzzles and more, this book is the boredom-buster, ready to use any time you have a spare few moments.

A handy, paperback book perfect for popping into a pocket or school bag, packed with puzzles, games and activities that will put your powers of logic to the test. It is a well-known fact that you can exercise your brain just as you might exercise your body; this book will keep children's grey cells in tip-top condition.

This handy pocket book is packed full of quiz questions suitable for the whole family. Children will love finding out the answers to a range of trivia questions, and testing friends and family on their general knowledge skills.

A pack of colourfully illustrated cards bursting with puzzles that can put children and adult's brainpower to the test. Each brain-teasing puzzle sorts out the brainiacs from the bozos by testing their observation, memory, arithmetic and logic skills. It also includes a special pen.

Presents a fun way to reinforce vocabulary. It helps children solve word-based puzzles on their own or challenge a friend or adult. It offers an interactive way to learn and practice reading, writing, spelling, punctuation and grammar.