Legally and Logically Nice!

A young Law student, having failed his Law exam,goes up to his crusty old professor, who isrenowned for his razor-sharp legal mind.
Student: "Sir, do you really understandeverything about this subject?"
Professor: "Actually, I probably do. Otherwise Iwouldn'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 willaccept my marks as they are. If you can't give methe correct answer, however, you'll have to giveme an "A".
Professor: "Hmmmm, alright. So what’s thequestion?"
Student: "What is legal but not logical, logicalbut not legal, and neither logical nor legal? "
The professor wracks his famous brain, but justcan't crack the answer. Finally he gives up andchanges the student's failing mark into an "A" asagreed, and the student goes away, very pleased.
The professor continues to wrack his brain overthe question all afternoon, but still can’t getthe answer. So finally he calls in a group of hisbrightest students and tells them he has areally, really tough question to answer: "What islegal but not logical, logical but not legal, andneither logical nor legal? "
To the professor's surprise (and embarrassment) ,all the students immediately raise their hands.
"All right" says the professor, and asks hisfavourite student to answer.
"It's quite easy, sir" says the student. "You see,you are 75 years old and married to a 30 year oldwoman, which is legal, but not logical. Your wifehas a 22 year old lover, which is logical, butnot legal. And your wife's lover failed his exambut you've just given him an "A", which is neither legal nor logical !!!!!!"