GCHQ Puzzle Book II, , Penguin Books Ltd, Penguin,Sudoku and number puzzles,Puzzles and quizzes, adult puzzle book; adult activity book; stocking fillers for men; brain games for adults; logic problems puzzle book; brain puzzles for adults; gifts for men; brain teaser puzzles for adults; brain health; puzzles for adults; gifts for her; gifts for him; codebreaking; murdle; trivia games; puzzle books for adults; mindfulness; crosswords; sudoku; puzzle books; book of puzzles; the traitors book; puzzles for spies; richard osman's house of games; brain teasers; bletchley park brainteasers; scotland yard puzzle book; wordle; penguin book of puzzles,, , United Kingdom, en-GBhttps://www.penguin.co.ukadult puzzle book; adult activity book; stocking fillers for men; brain games for adults; logic problems puzzle book; brain puzzles for adults; gifts for men; brain teaser puzzles for adults; brain health; puzzles for adults; gifts for her; gifts for him; codebreaking; murdle; trivia games; puzzle books for adults; mindfulness; crosswords; sudoku; puzzle books; book of puzzles; the traitors book; puzzles for spies; richard osman's house of games; brain teasers; bletchley park brainteasers; scotland yard puzzle book; wordle; penguin book of puzzles, [BLURB],[CITY],,books, ebooks, biblet, Book2look