1) The Federal Reserve System, often referred to as the Fed, is the central banking system of the United States.

2) The word "forest" contains two vowels: O and E.

3) The Boston Celtics and the Los Angeles Lakers are the most successful teams in NBA history, with a combined total of 33 championships.

4) The Dead Sea, located between Jordan and Israel, is the lowest point on Earth's surface. Its saltwater is so dense that people can easily float on its surface.