What webtoon is this?

It’s about this guy who was chosen to go through this place that basically gives you different trials. His first trial was so try an escape a room. I think the room had a window with steel bars and there was also a huge rock lodge in the wall. He tried to move the rock but it was too heavy, so plan B was to saw off the steel bars I think. Eventually, he realizes that the rock was actually a turtle’s back so I think he used heat to make the turtle move. There was also another trial whereii he was placed at the bottom of a pit and was given an egg as a way to escape. He raised that egg, used the feathers to fly out of there. Does anyone have a clue which webtoon this is?