Flower Insects is a sweet, wordless graphic adventure, Samorost-like, with a relatively simple set of inventory puzzles. (Click on your character to bring up the inventory screen.)
Though it plays in a small screen area, it's actually quite a rich and fairly large game, and contains a number of minigame puzzles (including a version of Tower of Hanoi) in addition to the inventory ones.
Graphic style is quite interesting -- artistic and atypical; and unlike many adventure games, the puzzles are not absurdly illogical.
It's well worth exploring.