What is the common name for the main vent at the top of a volcano?

More Questions:

In "Texas Hold "Em', what is the name of the fourth community card dealt?

What position did football hall-of-famer Joe Montana play?

During the 1st and 2nd centuries AD, which language was used to write the New Testament?

In Shakespeare's play who was the wife of Othello?

Which US state has the longest land border with Canada?

What do folks from Louisiana and Mississippi call sluggish creeks and marshy lakes?

What European city is nicknamed "Auld Reekie"?

What name is given to male rhinoceroses?

Which element of the periodic table is named for a Scottish village?

The 1977 movie "Saturday Night Fever" was based on what "New York" magazine article?

When was the Hubble telescope launched into orbit?

In July 1957, Althea Gibson became the first African-American to win what sporting event?

Which invention resulted in the Printing Revolution across Europe?

What Norse explorer introduced Christianity to Greenland around 1000 A.D.?

Which Canadian singer performed the song "(Everything I Do) I Do It for You"?