I would suggest some of Daedalic Entertainment's for production quality (not necessarily easy puzzles in all cases, as TheTron said about Night of the Rabbit, but I still enjoyed that one immensely), I've thoroughly enjoyed all of them, although some are easier than others.
Specifically for easy play: The Dark Eye: Chains of Satinav (based in the same universe of the German RPG Das Augur Schwartz). I am not an expert at Point and Clicks, and I wasn't by the time I played this game (which was if I remember correctly my 3rd Daedalic Point and Click game). I was able to play through 85% of the game without once having to look something up, which impressed myself since usually I suck at making big logical leaps, but then it may be the case that most of the game doesn't really stray too far into outlandish logic. Its certainly doesn't come close to Rama in terms of alien complexity of logic ever. I also found the art style to be very good (as I do with most Daedalic games), the writing to be humorous when it wants to be and serious when it needs to be, and overall a pretty solid game.
Its sequel, Memoria, was also good, but its puzzles are definitely harder and require more insane leaps of logic than Chains of Satinav. The story's still good though, just don't fuck up like I did and trying playing Memoria first, you won't understand the start of the game at all or who some of the characters are. Luckily I realized Chains had to have come first and stopped to beat it.
The Whispered World (by the same devs) is another good one, though late game has some pretty damn hard puzzles.
The Deponia series is a wild ride and full of Black Comedy if you're into that sort of thing, and I really enjoyed it, but its puzzles can range from ludicrously easy to somewhat challenging to WTF AM I SUPPOSED TO DO!? in terms of a sliding scale.
The Sherlock Holmes series is a mixed bag. I really enjoyed Sherlock Holmes vs. Jack the Ripper and The Awakened was . . . interesting (yeah, let's go with that), and I'd argue they have a steadily increasingly difficulty in terms of puzzle challenges, it starts off fairly easy and then gets hard towards the end.