One day a rich man 1 Hardy. The rich man asked, “I hear that you are very clever and 2 is difficult to you. Can you tell me why you are so clever?” Hardy answered 3 a smile, “Oh, I am not so clever. If you think that I am clever, you are a 4 then. “ The rich man became very angry with the words. Seeing this, Mr Hardy said, “Sir, please don't be 5 . If you don't believe what I 6 , now let me ask you a 7 . If you have a group of 8 , I send you another group. Then, how many groups of sheep do you have?” “What? That's the 9 question in the world. One and one is two. Anyone knows that I have two groups.” Hardy laughed and said, “You are 10 , Sir. Two groups of sheep put together is still one group. That is the easiest question in the world.”