Now here's a real test of important knowledge! Not sure what this has to do with pubs, though. Judging from the title screen, it might refer to some sort of quiz machine standing in a pub, but I've never seen one in real life. So, for me, this is a game about the things you might be talking about at a pub: TV, music, sports - you get the drift.
You put 10p into the machine and off you go. You can choose between a few different categories on a simple grid on which you try to climb up. Your choice on the first level is important beyond the first question, because you can only choose neighbouring questions afterwards, so the slightly strategic question here is to choose your path.