As you may know, New Zealand is currently in the process of a referendum to decide upon a new flag.

While they deliberate over the options, we wondered: how significant and recognisable are flags, anyway?

We've collected a few to form what we hope is a fiendishly difficult quiz to treat you with, because, well... at time of writing it's Friday.

Sadly, you won't see this one in the quiz as it failed to make the New Zealand referendum shortlist: