Newton''s 5th law:
Dunya Gol hai,
Chooha Billi say darta ha, billi Kuttay se, kuta Aadmi say, aadmi Biwi say, or Biwi Choohay say. Hence Proved. Dunya Gol hai.!
Girl before marriage looks like, Barbie doll.. After Marriage, Beautiful doll.. After 1 year, Nice doll.. After 2 years, Only doll.. After 3 years, Panadol........