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Do you love juggling numbers and playing with words These puzzles and brain-bafflers will keep you buzzing Use language maths and logic - and even guesswork - to... solve number sequences and knotty problems crack codes answer riddles play lateral-thinking games ...and lots more. Devised by an expert on brain training these word number and lateral-thinking challenges will exercise your mind and imagination There are handy tips if you need help and full answers too