What opera star sang with John Denver on the album "Perhaps Love"?

More Questions:

The phrase "cross word puzzle" was first used to describe a word puzzle in what year?

What year did the Parker Brothers publish the current version of the board game "Monopoly"?

The piri piri pepper is commonly called what?

What country won the men’s World Cup in soccer in 2010?

From what language did English borrow the word "glitch"?

In which continent would you find the Lena River?

What is the capital of the US state of Michigan?

What is the largest country entirely within the Southern Hemisphere?

The name for this semi-precious stone comes from the Latin for "sea water"?

What year did the US issue a patent on the production of margarine?

What does the Mach number indicate?

Queen and Duran Duran both had drummers with what name?

What disease killed 20,000 Parisians in 1832?

The color of your tongue is pink only if it's what?

What is the chemical name for quicksilver?