What length of paper would you need if you wrote with the same ball point pen until it ran out? Answer here.

Why do the tops of biros have a hole in them? Answer here.

Which country has the highest ratio of police to population? Answer here.

Where did the first potato come from? Answer here.

What was the virus that killed 50 million people in 1918/19? Answer here.

What is 'binge drinking'? Answer here.