I played up to the fibonacci sequence part. The first bits were fun, but I started losing interest when it got to the caesar cipher. The chart doesn't specify which ring is the code and which is the result, so I had to basically just guess which direction A=4 would imply. Plus, not being able to look at the chart while doing the puzzle made it tedious. For the fibonacci part, I tried continuing the sequence, but when that didn't work I was left with nothing to go on, and not really any reason to keep trying, since it didn't seem like there'd be any new jokes and such as a result.