I really enjoyed reading Complete puzzle world. My favourite one was Puzzle Castle. It was great entertainment after doing home tutoring with mum. It's hard but fun, you don't get bored, it's hard to find the missing things.
I loved the Usborne "Puzzle" books, growing up. My family had this book and it probably was worn out from overuse, but someday I'd like to get it for my own kids. They make you think and solve puzzles but they're so fun that it feels like an adventure.