1) The President of the United States serves as the head of state and the head of government, responsible for leading the executive branch and representing the nation domestically and internationally.

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

3) The world's tallest waterfall is Angel Falls in Venezuela, with a height of about 3,212 feet (979 meters).

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