Good morning pupils.
Doctor Watson is still having breakfast so I have decided telling you my last adventure by myself.
I was being held prisoner in a dark dungeon by the evil Professor Moriarty. I found 64 candle stubs lying on the dungeon floor. I could make one full candle from four stubs, and one candle woud burn down to a stub in one hour.
Working on the theory that I could only light full candles, how many hours of candlelight would I have before being left in total darkness?
I could ran away from the dungeon, of course.
Wirte to me if you find the solution.