Sardar is in a dissection class of cockroach.
He cuts its 1 leg, and said, "chal", it walks.
He cuts 2nd and 3rd legs and said, "chal" , it walks.
He cuts all the legs and said, "chal.....", it does not move.
Finally he wrote the conclusion:
"After all the legs of a cockroach are cut - it becomes deaf."
