How many years did the TV show "I Love Lucy" run for?

More Questions:

What single initial is used for the real-life director of Britain's M16?

In "The Twelve Days of Christmas', what did my true love send to me on the fifth day?

How many years does a silver anniversary celebrate?

What is the hobby of a "twitcher"?

What Florida city is known as the "Winter Strawberry Capital of the World"?

Which US state is sometimes referred to as the Beaver State?

In what county is Chicago, Illinois located?

Which US space probe was first to orbit another planet?

What is measured in Newtons?

Which famous actress is Liza Minnelli's mother?

Who starred as Danny Ocean in the 1960 movie "Ocean's Eleven"?

Who was musical director for Johnny Carson's "The Tonight Show" from 1967 to 1992?

What movie earned Katharine Hepburn her last Oscar?

How old was Buddy Holly when he died in a plane crash in 1959?

Andorra la Vella is the capital of which European country?