Engineer: a person who knows a great deal about very little and who goes along knowing more and more about less and less, until finally he knows practically everything about nothing.... ;->
Teacher : Correct the sentence, "A bull and a cow is grazing in the Field"
Student : A cow and a bull is grazing in the field
Teacher : How?
Student : Ladies First
Husband & wife are like liver and kidney.
Husband is liver & wife is kidney.
If liver fails, kidney fails.
If kidney fails, liver manages with other kidney.