Student v/s Professor

A student failed law & decided to make a deal with professor

sir, do u know everything about law?

Prof: yes

student; if u can answer dis question, i will accept my final marks, if u can't, u have to give me 'A'
professor agreed

boy asked, 'what is legal but nt logical, logical but nt legal & neither legal nor logical?

prof thought it about it for hrs & pondered no answer

He had to finally give up as he really did nt know. He gave the boy his 'A'

the following day, professor asked same Ques to his students

He was shocked when all of them raised their hands

He asked one student

he answered: sir, u're 65, married to 28 yrs old woman, dis is legal but nt logical
ur wife, is having an affair with a 23 year old boy, dis is logical but nt legal

ur wife's boyfriend has failed his exam & yet u have given him an 'A'
It's neither logical nor legal

The professor collapsed =)