What invention caused the Pony Express to be discontinued?

More Questions:

The sousaphone is a marching-band version of what symphony instrument?

What word would best describe Port Salut?

In which city would you find Wembley stadium?

What color flag is waved to indicate "caution" in auto racing?

Which company introduced the Mangusta in the 1960’s?

From what language did English borrow the word "smorgasbord"?

What does the acronym BPRD stand for?

What two US state capitals are named for people who were executed?

N2O is more commonly known as what?

Which movie popularized the phrase "You had me at hello."?

In which country was Nicole Kidman born?

In the 2002 movie "Spiderman', what was Peter Parker's profession?

Which year did Charles J. Guiteau shoot US President James Garfield?

The imperial fluid pint consists of how many imperial fluid ounces?

What year was the radio show "Gunsmoke" adapted for TV?