How often are brain cells replaced?

More Questions:

Elvis Stojko was an ice skating champion hailing from what?

How many players are there on a water polo team?

Epistemophobia is the fear of what?

What artist composed the opera "Tannhauser"?

What actress originated the role of Mame in the musical "Mame"?

What is the actual name of the giant human figures of Easter Island?

What nation's legislative body is named The Great Khural?

What is kept in a ship's binnacle?

Which chemical element is named after the Latin word for "red"?

In the TV show "The Simpsons', what is the name of Lenny's ex-wife?

According to his theme song, what is the most wonderful thing about Tiggers?

What was the name of Jimmy Nelson's dummy?

Samuel Miller patented the first steam-powered what in 1806?

Morello is a variety of which fruit?

What was the full name of Dr. Henry Jekyll's alter ego?