There were group of people touring around the Gulf region by a Yacht. All of sudden they found that one of his friend was missing and fell off from yacht in to deep water. That person doesn't know swimming and not wearing any life jacket to make him float. Few hours later they managed to find him and brought him back alive to yacht. How is this possible?
Answer is a strange fact. The Region that they were traveling was Dead Sea, which lies in between Israel and Jordan. This sea water is very famous for its salty content and dense that anyone in it floats very easily.