How many colors are there in the spectrum?

More Questions:

What does the abbreviation IMHO mean?

What was the first production car to break the 200 mph top speed limit?

What is the complementary colour of red?

What sport's lingo uses the term "Catenaccio"?

What singer's autobiography was titled "Man in Black"?

What island in California was once called Pelican Island?

Who invented nylon?

What fruit comes in Beefsteak and Roma variety?

The music duo "Daft Punk" consists of which two French musicians?

What was Joan Jett's backing band?

Who was the longest reigning Prime Minister of Britain in the 20th Century?

Where in the Americas did Europeans first settle?

Who was the first human in outer space?

Though not published first, which book in "The Chronicles of Narnia" series comes first chronologically?

What year was Disney’s "Mickey’s Christmas Carol" released?