Which letter in the Greek alphabet is a circle with a horizontal dash through the center?

More Questions:

The Purple Heart is awarded for which reason?

A "Michigan Loader" is what?

Which company was founded first - Apple or Microsoft?

At what university was Gatorade invented, in 1965?

Who is the Roman equivalent of Dionysus, the Greek god of wine?

What decade was Agatha Christie's "Murder on the Orient Express" set in?

Hells Canyon is located in which two US states?

Which drug can be extracted from the bark of the cinchona tree?

What part of the human body grows at an average rate of 3 mm per month?

What was Billy Joel’s first Top 40 hit?

The character Michael Myers is associated with which slasher-horror film?

What picture hangs on Andy Dufresne's cell wall in the movie The Shawshank Redemption?

What name was Eva Peron known by?

Which US president walked down the aisle with a three-months pregnant Nancy?

On what short story was the 1946 film "It’s a Wonderful Life" based on?