In which European city are the headquarters of OPEC?

More Questions:

In the Twelve Days of Christmas what did my true love send to me on the fourth day?

A person who stArts fires maliciously is known as a what?

What food product calls itself the snack that smiles back?

What "Lady of the Lamp" was named for the Italian city where she was born?

What is Charlie's last name in Roald Dahl's "Charlie and the Chocolate Factory"?

Albania, Bulgaria, Greece, Bosnia and Herzegovia, Kosovo, and a few other countries make up what peninsula?

Most of Transylvania is now part of what modern-day country?

Polaris is also referred to as what?

Who starred as the Six Million Dollar Man?

What singing duo originally billed themselves as "Caesar and Cleo"?

Which emperor built the Taj Mahal?

What year did the Saint Valentine’s Day Massacre occur in Chicago?

Attila the Hun was the leader of which ancient empire?

What island country announced its neutrality the day after the 1939 German invasion of Poland?

Celine Dion's "My Heart Will Go On" song was featured as the main theme song to which 1990's movie?