The color of your tongue is pink only if it's what?

More Questions:

Notch, peak, and shank are different types of what?

Who played his first game for D.C. United in 2003 at the tender age of 14?

The Purple Heart is awarded for which reason?

Who was pictured on the first US adhesive stamp?

What year did Brett Favre officially retire from his football career?

Which country was selected as a host of the 1916 Olympic Games, but didn't actually host them?

What breed of dog is Snoopy?

Who wrote about Willie Wonka and the Chocolate Factory?

What is the capital of the state of New York?

In distance measuring, what does AU stand for?

What is the name for the soft white layer that forms on teeth?

The flowers known as rhododendrons are most commonly shaped like what?

The Portuguese man-of-war is a type of what?

What is the chemical symbol for potassium?

Which movie introduced Indiana Jones to the public?