Muh tod Jawab: . . A maths professor sent an sms to his wife. Dear you are now 54 years old and unable to satisfy me. Now I am with my 18 years old female student. So I will be late tonight. . . Wife replied: Dear you're also 54 years and unable to satisfy me . . Now I am with our driver who is also 18 years . . As you are a mathematician you know very well that 18 goes into 54 many times more than 54 goes into 18, so don't come tonight..!:) Moral: Jyada saanpatti kabhi kabhi bhaari pad jaata hai.