Electricity is an amazing thing. Without it the world as we currently know it would come to a sudden and very dramatic stop. Everything we basically do is now dependent of the flow of electrons from one point to another. If this flow should stop, we'd have to go back in time to do things the hard way.
This brain-teasing game of logic is all about electrical circuits - it is up to you to figure out how to get them to work so that all the outputs turn on. Fail to do this right and the world u live in is doomed. Do it correctly and the light bulb u so very much depend on will turn on.