No means no!

What do you do with a daughter that doesn't know the meaning of the word no. You tell her no once. She asks the question again. You so no twice. She asks the questions a second time. You tell her no a third time . She matches you again. I think this goes on for at least 8 times. I ask her "when does no mean no"? I'm still waiting for her answer. Daughter where are you? Daughter I am waiting on your answer? Daughter do you think you can answer my question? Daughter why are keeping me waiting?