After failing in an Exam: a college student goes to his Lecturer

After failing in an Exam,
a college student goes to his Lecturer..

Student:
sir, do you understand the subject yourself??

Professor:
surely I must. Othrwise I would not be a professor!!

Student:
I would like to ask you a question.
If you give the correct answer ,I will accept my marks & go.
If you don't know the answer, you give me an ''A'' grade!!

Professor:
ok...what is the question.?

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

The professor couldn't give the answer
and changes his exam mark into an "A" =)

Professor:
ok...Now tell the answer!

Student:
sir you are 63 years old & married to a 35 year old woman
which is legal but not logical..=D

Your wife has a 25 year old lover
which is logical but not legal..=O

You have given your wife's lover an "A"
although he shoud have failed..=O =P
its neither legal nor logical ;D

Professor shocked !