There are millions and billions of people, but everybody is different from other by face structure, voice and thumb impression. When I start to think, my imagination fails as to how it is possible ? No one can do it except Allah (sut). Who has the power to contain seas water into its limit, nothingelse, but Allah (sut). Quran mentioned centuries ago that the water in the seas in Gulf is divided into parts by putting a curtain between salty and sweet water. A recent experiment by taking samples from the sea has proved that it is like so.