What part of the eye gives it color?

More Questions:

What American company had a thirty-foot inflatable gorilla atop its Rhode Island offices for decades?

What soft drink used the ad slogan "Obey your thirst" for almost two decades?

Who is credited with writing the first detective story, "The Murders in the Rue Morgue"?

The novel "Barnaby Rudge" is set during which riots?

What is the world's largest island?

What major river runs through Cleveland?

How many US states border West Virginia?

Winesap, Cortland, McIntosh and Rome are all types of what?

What part of the human body experiences different growth rates called anagen, catagen, and telogen?

What tree gives us prunes?

In what year was DNA first isolated?

Who was the original bandleader for "The Tonight Show with Jay Leno" from 1992 to 1995?

What kind of dog is Pluto's girlfriend, Fifi?

Which UN Secretary-General was killed in an airplane crash in 1961?

In which European country is Tokaj wine produced?