There is nothing which cannot be answered by means of my doctrine," said a monk, coming into a teahouse where Nasrudin sat.
    "And yet just a short time ago, I was challenged by a scholar with an unanswerable question," said Nasrudin.
    "I could have answered it if I had been there."
    "Very well. He asked, 'Why are you breaking into my house in the middle of the night?'"