What vitamin, found in carrots, helps maintain the acuity of your vision?

More Questions:

A luffa is a type of what?

The feet of the infamous Pez dispenser were not added until what year?

What composer of the "Symphonie Fantastique" worked as the librarian of the Paris Conservatoire?

What city named its airport after Ted Stevens?

Beantown is the nickname for what US city?

Ladin is primarily spoken in which area of the world?

The Linke Scale is used to measure the blueness of what?

Balsam, Fraser, and Douglas are all types of what?

What Greek physician is known as "The Father of Medicine"?

Who played Willie Scott in the movie "Indiana Jones and the Temple of Doom"?

Who had a 1990's hit with "Them Girls Them Girls"?

Who was the King of Swing?

Which TV character has the surname "Sagdiyev"?

The original name of New York City was what?

Which Roman Emperor received the title "Gothicus Maximus" because of his campaign against the Goths and the Heruli?