Professor Layton almost all the way through includes trick puzzles which have non obvious answers as well.

Obviously the games aren't perfectly obvious and later games are much better, but they are generally much more obvious than something like King's Quest which was properly brutal. I remember needing occasional hints to manage monkey island but nothing like completing King's Quest where I had to constantly check the walkthrough.

For instance, I found Leisure Suit Larry I in many ways better, from the gameplay, than "Leisure Suit Larry: Love for Sail!". Now, the latter made much more use of the mouse, so it was easier and simpler for most players; but I found LSL 1 just so convenient and quite fast to play, if you could handle the keyboard well. It was of course nowhere near as convenient as clickety-click via the mouse, but I had that impression several times with games. SimCity 1 was IMO much nicer to play than later simcities; same impression I had with civilization, the actual gameplay got progressively more annoying, slower and laggier.