What group of chemicals is responsible for the heat in chili peppers?

More Questions:

Innsbruck is the capital of which Austrian state?

Chicago is located on the shore of what lake?

The Carskill Mountains are part of what larger mountain chain?

Cerumen is more commonly known as what?

Which element appears fifth on the periodic table?

What show is "The end of something simple. And the beginning of everything else"?

Which actress got her start at age 13 playing the 12-year old prostitute Iris in a 1976 thriller?

During what decade was the first US transcontinental railway completed?

Which US president had a sign on his desk that read "The Buck Stops Here"?

Who was the first victim of the electric chair?

What Confederate general opened fire on Fort Sumter, beginning the Civil War?

Who received the third most popular votes in the 1992 US Presidential election?

Approximately how long did the Pony Express run?

What is a shark's skeleton made of?

While filming a segment for the show "The Grand Tour", what car did Richard Hammond crash in June, 2017?