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 word "elephant" contains three vowels: E, A, and E.

3) The Olympic motto is "Citius, Altius, Fortius," which is Latin for "Faster, Higher, Stronger."

4) The first photograph of a black hole was captured in 2019 using a network of telescopes around the world.