A Phon is a unit of what?

More Questions:

What off-road endurance race is named after the African capital where it usually ends?

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

What is Hershey's most popular product?

Mary Read and Anne Bonny had what job in common?

In the clothing store name "L. L. Bean', what do the letters "L" stand for?

In which opera does Leporello entertain a vengeful jilted lover?

What was the four letter name of Thailand before 1949?

The US state of California was originally part of which Spanish territorial colony?

In what organ of the human body would you find the malleus?

What is March's birthstone?

Who sang the 1979 song "Family Tradition"?

What musician had a first name from Roman myth and the even more unusual middle name "Sphere"?

Before becoming Vice-President, Joe Biden represented what state in the US Senate?

The Parthenon in Greece was dedicated to which Greek Goddess?

In which French city would you find the Pont Neuf bridge?