Chocolate's addictive properties are due to what alkaloid?

More Questions:

The 2007 rule banning suspended NFL players from signing with the CFL was named for what player?

What Christian sect observes its Sabbath on Saturday?

Which Ferrari model translates literally from Italian as "red head"?

Which US state is home to White Sands National Monument?

What name is shared by the rivers that run through Denison, Texas and Hanoi, Vietnam?

Which planet is named for the God of War?

What is the study of ants called?

What actress shaved her head for her role in the movie "Alien 3"?

Which song became synonymous with "The Bridge on the River Kwai"?

In the 1985 movie "The Breakfast Club', what did Brian The Brain do to get detention?

The life of what jazz legend was portrayed in the 1988 film "Bird"?

What is "Shawshank" in the movie "The Shawshank Redemption"?

Who took her last swim from a boat named "Splendour" in 1981?

How many countries does Bangladesh share a land border with?

On which of the Canary Island would you find the holiday destination of Corralejo?