What popular one-named musician's last name is Armstrong?

More Questions:

Who knocked out Trevor Berbick in 1986 to become the WBC Heavyweight Champion in boxing?

What raconteur and Topkapi star joked that he wanted his tombstone to read "Keep off the grass"?

What nickname for potatoes comes from the name of the tool used to dig them up?

Who was Andre Agassi's greatest tennis rival in the 1990s?

What type of food is Lollo Rosso?

George Catlin is best known for his paintings of whom?

What is a group of apes called?

Who is credited with the discovery of Neptune's moon, Triton?

What is the only chemical element whose name is only three letters long?

Who was on stage when Robert Opel streaked the 1974 Academy Awards?

What's Mick Jagger's favorite soda, according to "You Can't Always Get What You Want"?

Who was Gordon Shumway?

When was NATO formed?

The State of Washington was originally going to be called what?

What country borders Central African Republic to the west?