What do the letters OS stand for when referring to maps?
In economics, what do the letters GNP stand for?
What do the letters NFL stand for in relation to the USA sporting organisation?
Which city had the first underground railway?
What is the underground railway system in Paris called?
On a standard computer keyboard the 26 letters are arranged in how many rows?
What do the letters HB on a pencil mean?
In Doctor Who, what does the acronym TARDIS stand for?
