The One Piece manga is quite a bit ahead. It has been running for a long time and has many story arcs and developments that the anime hasn't caught up to yet.
The manga One Piece is usually a few chapters or arcs ahead of the anime. But this can change depending on the production schedule and story development.
No way! A two-story house is way too high to jump from. It's against common sense and safety regulations. Even if you think you can, it's a bad idea with potentially life-threatening consequences.
The One Punch Man manga's lead can be difficult to quantify precisely. It could be a few chapters or more, but it's constantly changing based on the production and publication dynamics.