Colors that are opposite each other on the color wheel are refered to as what?

More Questions:

What is the generation of people born from 1946 to 1964 called?

What company helped the US Army Corps of Engineers develop the "walkie-talkie" in the early 1930’s?

What L.A. Dodgers pitcher famously skipped his World Series starting assignment in 1965 because it fell on Yom Kippur?

Christmas caroling began as what old English custom?

What color are the $1 bills in a standard game of Monopoly?

Who wrote the book "Gulag Archipelago"?

The "Carnac Stones" are located what country?

What is the study of moths and butterflies called?

What was the name of the guy Sam has a crush on in the movie "Sixteen Candles"?

What did the Wicked Witch of the West spell out with her broomstick in the sky in the 1939 film "The Wizard of Oz"?

Which actor played the movie character known as "The One"?

Who released the albums "At Folsom Prison" and "At San Quentin"?

John Carpenter's "Assault on Precinct 13" is an homage to what classic Howard Hawks western?

What ended the era of steamboats on the Mississippi River during the 1870s?

Which painter, famous for his pop-art, died in 1997?