Three switches labelled off and on. Three light bulbs, one wired to each switch. But in the room next door. You can set the switches to anything you like. Then you must go into the room next door and say which bulb is connected to which switch. In one guess. How do you do it?
Where Would You Think
If you are thinking about study at a university in the UK and want to find out about student life in general (and Computer Science in more detail) then this site is a great place to look.