You all watch Only Connect, right? I was amazed to see a question I knew the answer to due to our nerdiness in specifying the software for Transport for London’s Tri-reader that works with Oyster, contactless EMV and even ITSO.
The question was, what do the following have in common (see image)?
Four clues are revealed one by one. The sooner you supply the link, the more points you get. All four were revealed and no-one knew the answer. As the image shows, London Underground gate error codes, was the answer. COME ON GUYS!