Brain Training Book: 66 puzzles (2 puzzles answer marked with a pink marker pen)
Riddles associated with Mensa book: 166 puzzles (first 16 puzzles have answers written on in pencil)
Still hours of fun if you're into these kinds of puzzles.
Two Puzzle books - partly used (Lampton TW3)
This offer has been gifted to someone and is no longer available.