Teacher: What is a verb? Student: A verb is a valve found in bicycle tyre. Teacher: What are you saying?. Student: It is a complete sentence. Teacher: Are you mad?. Student: It is a question. Teacher: Don't be silly. Student: It is an advice. Teacher: Stop that nonsense. Student: It is a command. Teacher: You are an idiot. Student: It is an insult!. Teacher: Get out of my class. Student: It is an order! Teacher: Oh my God! What a shame! Student: It is an exclamation. Teacher: May God have mercy on you. Student: It is a prayer sir! :