Who developed the first modern set of headphones?

More Questions:

In 2003, who became the first LatinAmerican to hit 500 career home runs in Major League Baseball?

Bibliophobia is a fear or hatred of what?

What NHL team won the Stanley Cup six times during the 1970’s?

What fruit was referred to as "Golden Apple" in Greek myth?

In 1853, what author founded a successful daily journal called "Le Mousquetaire"?

What city is the capital of the US state Idaho?

Jackson Hole ski resort is located in which US state?

What actor was the executive producer of the mystery series "Push, Nevada"?

Who provided the original voice for Marge Simpson?

What 1990's one-hit wonder wrote Christina Aguilera's hit song "Beautiful"?

In the TV show "The Simpsons', what is the name of Springfield's comic book store?

In what year did Mother Teresa die?

What US state is represented by the figures of George Washington and Robert E. Lee in the Capitol's Statuary Hall?

What infamous assassin hollered "Sic Semper Tyrannis" as he made his escape?

Who is the boss on NBC's TV Show "The Office"?