The Hawaiian landmark known as "Diamond Head" was formed from what?

More Questions:

What boxer is memorialized by a giant fist outside Detroit's Renaissance Center?

What's the traditional dish served at Wimbledon?

From what language is English has said to borrow the word "posh"?

Who revealed he was HIV-positive in his 1995 autobiography "Breaking the Surface"?

Which US state was established by William Penn in 1681?

What is the capital of Serbia?

In what country would you find the port of Rosetta?

What is a common word for a metric ton in the US? Spell the word.

Who won a Nobel Prize for discovering inert gases?

What is the square root of 121?

A "Tiercel" is the traditional term for a male what?

What kind of dental specialist performs root canals?

What 1997 film featured Clint Eastwood, Gene Hackman, Ed Harris, and E.G. Marshall?

How many amendments have been made to the US Constitution?

Which country borders Macedonia to the north?