1) The United Nations Security Council is responsible for maintaining international peace and security, with five permanent members (China, France, Russia, the United Kingdom, and the United States) holding veto power over resolutions.

2) The first car with air conditioning was released in 1939.

3) The word "chocolate" contains four vowels: O, O, A, and E.

4) The smallest unit of time is known as a zeptosecond, which is equal to one trillionth of one billionth of a second.