A deficiency of which vitamin can lead to night blindness?

More Questions:

What Hindu god is known as "The Destroyer"?

Whose halftime set at Super Bowl XLI was performed during a downpour?

What type of pasta’s name mean “little tongues” in Italian?

When was the book “National Velvet” first published?

Which South American country takes its name from Christopher Columbus?

Which state is home to the Fort Apache Indian Reservation?

In which city does the Ponte Vecchio span the Arno river?

What is the largest salt-water lake in the US?

What is the heaviest breed of bear?

What South American animal is the world's largest rodent?

How many natural satellites does Jupiter have?

What was Captain McIntyre's nickname on M*A*S*H?

Anthony Hopkins played a ventriloquist in which 1978 movie?

What was Bob Dylan's first Top 10 hit?

In speaking, the use of an incorrect word in place of a word with similar sound is known as what?