1) The Mona Lisa, painted by Leonardo da Vinci, is one of the most famous and valuable artworks in the world.

2) The universe is estimated to be around 13.8 billion years old.

3) The International Cricket Council (ICC) is the governing body for the sport of cricket and oversees international tournaments and rankings.

4) The concept of political stability refers to the ability of a government or political system to maintain continuity, order, and effective governance over a prolonged period, promoting social cohesion and economic development.