What is legal but not logical, logical but not legal, and neither logical nor legal?
A young Law student, having failed his Law exam, goes up to his crusty old professor, who is renowned for his razor-sharp legal mind. Student: "Sir, do you really understand everything about this subject?" Professor: Actually, I probably do. Otherwise I wouldn't be a professor, would I?" Student: "OK. So I’d like to ask you a question. If you can give me the correct answer, I will accept my marks as it is. If you can't give me the correct answer, however, you'll have to give me an "A". Professor: "Hmmmm, alright. So what’s the question?"