1) The word "umbrella" contains three vowels: U, E, and A.

2) Michael Jackson's album "Thriller" is the best-selling album of all time, with estimated sales of over 66 million copies worldwide.

3) The world's oldest tree is believed to be a bristlecone pine named "Methuselah" in California, estimated to be over 4,800 years old.

4) The book series "The Chronicles of Narnia" by C.S. Lewis has sold over 100 million copies worldwide.