You can exercise your mind and having fun by playing card games like the world of solitaire.
It's one of many types of card games, but it's unique in that it's just for one person and contains a wide range of game details.
Solitaire is played using a shuffled deck of cards. The cards are arranged on the tabletop according to some predetermined guidelines in solitaire. The player tries to re-position the deck by varying moves and substituting cards within predetermined limits in order to re-position the deck in terms of ranking and suit.