Hum: Hey, Its my birthday tomorrow.. what gift have you planned to give me?
Tum: Aha.. Thats nice.. but i give gifts only to young girls.. not to the ones who are as old as twenty five!
Hum: Huh! Twenty five??? Thats not true.. Its Twenty four..!
Tum: No.. I can Prove it..
Hum: how? go ahead..
Tum: ok.. Take the case of a baby, Twelve months after it is born, it is one year old on its first birthday, right?
Hum: **Thinks Cautiously** Yeah, correct!
Tum: So, On your ninth birthday you are nine years old, and so on and so forth..
Hum: **Counts on fingers of both hands** ok.. thats right!
Tum: So on your Twenty-Fifth birthday, you will be Twenty-Five!
Hum: Wait..! Surely the baby is born on its first birthday? so, twelve months after birth it would be her second birthday and she would be one year old.. **Feeling quite pleased with the answer**
Tum: Doesnt make sense.. It cant be your Twenty-fifth birthday and you still remaining twenty-four! That Proves, your actual age is Twenty-five and you are OLD!!! So, you are not eligible for a gift from me!! ;-)