One off Northern line quiz [Prize available!!!]

Now that this quiz is over it is worth pointing out that, while a few of the suggestions were well thought out, some were such wild stabs in the dark as to be totally farcical. I mean, how could any station on the Underground survive without a kettle?
Reviewing the replies, I noted one tongue-in-cheek comment that raises some rather intriguing possibilities:-

The question being, "Is it?" This of course depends on how you look at things. There is after all a junction just after Borough that curves off down the old main line to the King William Street terminus. Although there is no longer any track there and the tunnel is now partly sealed, this leads to another station 'between' Borough and London Bridge that would only be accessible by a train on the line between Elephant & Castle and London Bridge. This therefore means that Borough is not the only station between these two points. However, if you look at this as a purely geographic exercise, then you must consider King William Street to be between London Bridge and Bank - although it would never have been accessible by a train travelling between those two points.