How often are brain cells replaced?

More Questions:

What company invented the floppy disk in 1970?

How many fingers does a boy scout extend in a salute?

What city's orchestra did Eugene Ormandy conduct for forty-four years?

What Canadian province is home to Pink Mountain, Muncho Lake and Nootka Sound?

In what organ of the human body would you find the malleus?

What element is given the symbol "I"?

The movie "300" is based on the graphic novel by which comic writer and artist?

Who played the role of Michael Clayton in the 2007 movie by the same name?

The "Happy Days" spinoff, "Joanie Loves Chachi', was set in which city?

Who played Mr. White in the movie "Reservoir Dogs"?

In which James Bond movie does the character Pussy Galore appear in?

In 1969, what woman said "No woman, in my time, will ever be Prime Minister"?

Whittaker Chambers hid Alger Hiss" purloined State Department documents in a hollowed-out what?

The number 20 is the basis for which numeral system?

Gaborone is the capital of which African country?