Comments by "Beer_Dad" (@Beer_Dad1975) on "4 Revolutionary Riddles Resolved!" video.

Got the cylinder half right, so I'm giving myself a partial credit, I gave up on the running one because I couldn't calculate an answer but assumed there must be one and I was just too stupid to work it out, not that there was no answer, the train one was easy, and I experimented on the bike one and concluded it would go backwards since my bike did, but I guess that was cheating & also making the assumption that both bikes would behave the same. This was a lot of fun thanks!
1