In Town God's Temple there is a blind fortune teller, a man who wants to fortune telling three things for his marriage, illness and work. But in order to cheat more money, the blind fortune teller set up a sign at the door, which said 'two questions and twenty taels of silver'. But he had only twenty-five taels.
And he asked, "is a short sentence a question?"
The blind man said: 'of course. '
So he asked, "is a long sentence a question?"
The blind man said: 'that's all right. '
So the man thought hard about how to find a way to ask questions. What kind of method can he find? How many questions did he ask?