What two colors are most often confused by people who are color blind?

More Questions:

Pepsi Twist was a Pepsi flavored with what?

What pitcher with four World Series rings its nicknamed "El Duque"?

What kind of a head does a Criosphinx possess?

What colour is Creme de menthe?

What year saw the release of the first Harry Potter book?

Who is the wife in Shakespeare's only interracial married couple?

What famous museum was once called the Musee" Napoleon?

Which ocean surrounds the Union of the Comoros?

What is the capital of the US state of Iowa?

The constellation Sagittarius is usually depicted as aiming its arrow at what fierce neighbor?

Who played Mr. Miyagi in the 1984 film "The Karate Kid"?

What athlete had a part in the movie "The Scorpion King"?

Who played the role of Donnie Brasco in the movie of the same name?

Which villain did Terence Stamp play in the 1980 movie "Superman II"?

What element has the periodic table name Sb?