How many colors are there in the spectrum?

More Questions:

What 3 word phrase is written on Martin Luther King's gravestone?

In which gymnastics discipline would a man do the scissors?

How many different railroads can be bought in the game of Monopoly?

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

The Shenandoah Valley is located in which US state?

What plant is the most common cause of hay fever?

If you were travelling at Mach II how fast would you be moving?

What animal has the highest blood pressure of any animal?

Where is the opening scene of the movie "Love Actually" shot?

What was the sub-title of the second Bridget Jones movie?

What TV show's eateries include The Brick tavern and Roslyn's Cafe?

What Hanna-Barbera cartoon character was known for the catchphrase "Exit, Stage Left" when dashing off?

What empire arose in the Peruvian highlands around 1200 AD?

Which is the only one of the Seven Wonders of the Ancient World still standing?

"White Room" was a hit off which Cream album?