What is the thin layer of foam on top of an espresso called?

More Questions:

Which company holds the ticker symbol "FUN" on the New York Stock Exchange?

Pax was the Roman goddess of what?

What children's classic first chapter is titled "Into the Primitive"?

Which drug was first extracted from the bark of the cinchona tree?

Who collaborated with Beno Gutenburg to devise a system of measuring the intensity of earthquakes?

What Greek physician is known as "The Father of Medicine"?

What element are diamonds made of?

Kathy Bates won the best actress Oscar in 1990 for what movie?

What show featured the five orphaned Salinger siblings?

How many keys does a baby grand piano have?

What actor is synonymous with the Indiana Jones character?

What is comedian Jon Stewart's full birth name?

How much did the United States pay Russia per acre for the purchase of Alaska in 1867?

Who is the tenth member of the group LOONA to debut?

Who starred in the role of Ben in the TV show "Bonanza"?