Here’s some free advice from me, your old pal, Dr Paul.

Don’t go to the bother of getting all the answers right in the jackpot round and then write down that Moscow is 25,000 miles away from Edinburgh as a tiebreak answer.

Other examples exist but the distance questions come up fairly frequently.

The highest number this would ever be would be Edinburgh – Auckland (New Zealand) which would be about eleven thousand miles.

So there’s your rule of thumb.