1) The word "banana" contains three vowels: A, A, and A.

2) Dwayne "The Rock" Johnson is an American actor, producer, and former professional wrestler. He has become one of the highest-paid actors in Hollywood, known for his roles in films such as the "Fast & Furious" franchise, "Jumanji," and "Moana."

3) The first modern health insurance policy was introduced in Germany in the late 19th century.

4) The world's oldest known recipe is for beer and is over 4,000 years old.