Wooden Puzzles
A puzzle does not get bored quickly and the animal 3D puzzles from Philos are so much fun that you will certainly do them again. You can also spend hours with puzzle games, how about Pagoda, Tangram or wooden 3d puzzles. If you prefer numbers, Sudoku is for you. There is also the bottle game, not only a fun brain teaser but it also gives an extra dimension to, for example, a bottle of wine that you give as a gift.