1) The word "oxygen" contains two vowels: O and E.

2) The Dead Sea, bordered by Jordan to the east and Israel and Palestine to the west, is a hypersaline lake known for its high salt concentration. It is the lowest point on Earth's land surface and provides unique buoyancy, attracting visitors who enjoy floating in its waters.

3) The concept of insurance dates back to ancient times when merchants would distribute their goods across different ships to reduce the risk of losing everything in a single event.

4) The FIFA Ballon d'Or is awarded annually to the best male football (soccer) player in the world, as voted by national team coaches, captains, and journalists.