1) The word "flower" contains two vowels: O and E.

2) The concept of insurance dates back to ancient times when merchants would distribute their goods across different ships to reduce the risk of losing everything in a single event.

3) The role of the judiciary is to interpret laws, resolve disputes, and ensure justice in accordance with legal principles and the constitution. It serves as a check on the executive and legislative branches of government.

4) The world's most expensive car is the Bugatti La Voiture Noire, which sold for over $18 million.