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

More Questions:

What was the birth name of Elephant Man?

Which pasta is shaped like a short tube?

What operation, consisting of a laparotomy and a hysterotomy, is the most commonly performed procedure in US hospitals?

Who created the character of Baloo?

What mythical creature was born from the blood when Perseus chopped off Medusa's head?

What nation's legislative body is named The Jatiyo Sangshad?

What inert gas gets trapped in the blood when a diver gets "the bends"?

What kind of bird is an eider?

Which two actresses on TV's "Charlie's Angels" were meant to be portraying sisters?

What musical starred Vanessa Redgrave as Guinevere?

Tuesday Weld played Thalia Menninger on what TV show?

Who won an Oscar for her portrayal of a young dancer in the movie "Black Swan"?

What clergyman won a Novel Peace Prize in 1964?

Who recorded the albums "Into the Fire" and "Waking Up the Neighbours"?

Which major river is adjacent to Memphis, Egypt?