1) Sir Elton John, born Reginald Kenneth Dwight, is an English singer, songwriter, and pianist. With a career spanning over five decades, he is one of the best-selling music artists in the world and has received numerous awards and accolades for his contributions to music.

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

3) The national animal of Canada is the beaver.

4) The concept of gravity was famously described by Sir Isaac Newton after an apple fell on his head.