Student Vs Professor... "wasomi ipo hii?..."

After having failed his exam in "Logistics and
Organization", a student goes
and confronts his lecturer about it.

Student: "Sir, do you really understand anything
about the subject?"

Professor: "Surely I must. Otherwise I would not be
a professor!"

Student: "Great, well then I would like to ask you a
question.

If you can give me the correct answer, I will accept
my mark as is and go.
If you however do not know the answer, I want you
give me an "A" for the
exam. "

Professor: "Okay, it's a deal. So what is the
question?"

Student: "What is legal, but not logical, logical,
but not legal, and neither logical, nor legal?"

Even after some long and hard consideration, the
professor cannot give the student an answer, and
therefore changes his exam mark into an "A", as
agreed.

Afterwards, the professor calls on his best student
and asks him the same question.

He immediately answers: "Sir, you are 63 years old
and married to a 35 year old woman, which is legal,
but not logical. Your wife has a 25 year old
lover, which is logical, but not legal. The fact
that you have given your wife's lover an "A",
although he really should have failed, is neither
legal, nor logical."