If you mean "do" as in "have sex", you can play with your sex organs until you get an orgasm. That is called masturbation.
No, it is not possible to purchase a house from yourself as you cannot buy something from yourself in a traditional sense.
no
no
no
No it isn't possible to do that in iTunes.
Yes. It is very possible to make yourself depressed.
Yes, it is possible to learn how to swim by yourself, but it is recommended to have proper instruction and supervision for safety and to improve technique.
No, it is not possible to hire a hitman to target yourself. Hiring a hitman is illegal and can result in serious consequences.
No, it is not possible to ship yourself in the mail. It is illegal and unsafe to attempt to mail a person through postal services.
yes it is possible to make yourself faint
no
no not possible