What games can you play by yourself?

you can play the game trash by yourself. All you do is set up ten cards and whatever number card you pull out the deck you just put it in its number place. I don't know how to explain it but like if your friend pulls a card that he or she already has they put it in the trash deck but if you don't have that number card then you can take it and put it in its number place. Also you can put a king anywhere but you cant do nothing with a jack or a queen.I don't know how to explain it but thats the best i can do.