If you feel too much entertained, he will first allow you to ask for one wish. I have to warn you : it takes months for the witch to fully understand your demand. My uncle Joe asked her a favor when he was young, she never responded and Joe is dead now. It never occurred to me that it could return someday. Please be careful. The trolls will ask you a lot of money for their work. However praiseworthy it may be, they seldom solve problems.