Infamous, thank you very much for your warm welcome greeting.
I think a misunderstanding has arisen, if I'm not mistaken. It may be my fault that I forgot to specify what kind of problems I meant in my initial message.
These are (non-standard) mathematical/physical problems. So it's all about the transition from solving problems to inventing problems in mathematics/physics. I heard of many famous or perspective mathematicians/physicists, who created their own problems for competitions in mathematics and physics, for example (such as IMO or national olympiads).
I have been thinking about how they managed to become problem inventors, what specific techniques, methods they possibly used. I was also wondering if it is true that one cannot assign their creativity to their genius alone. So that was again a brief summary of my initial question.