You have a glass of tomato soup. You have to give it to two children.How would you divide the soup into two so that both of them are satisfied that they have got equal share of soup?
You have one empty glass also.
The two glasses are of different shape and size.
Answer: please provide in comments below
Ask one of them to divide the soup into two equal parts.And then tell the other child to pick his glass.Thus both of them are satisfied.