What is the most abundant metal in Earth's crust?

More Questions:

What popular operating system are the Mac OS X series based on?

What are Limerick, Round Bend, Aberdeen and Octopus?

What was Cinderella's real name?

What is the technical term for egg white?

What is added to water to make tonic water?

What was the colorful nickname of elderly frat member Joseph Pulasky in the 2003 film "Old School"?

On "The Simpsons', what character's wife is voiced by SNL's Jan Hooks?

Who was the prime minister of Canada for the majority of Bill Clinton's time as U.S. President?

What Mexican general led the attack against the Alamo?

When did Vladimir Lenin serve as the head of the Soviet Union?

In Greek mythology, who did Athena turn into a spider?

What was Richard Wagner's second Opera that was inspired by a trip on the sea?

Egg Fu is the enemy of what superhero?

What is the capital of Nova Scotia?

What is the capital of Mongolia?