How do you improve your skills at work?

Hey all, I’m currently toying with a certain idea around leveraging the skills that exist in your current organisation. I have a few questions around this topic that I would love to hear people’s responses on:

1. When coming across a problem at work, I.e you can’t find this piece of information, you don’t know how to solve this problem. How do you go about solving it?

2. Assuming this problem can be solved by someone In your organisation how do you find this person?

3. Do you wish there was a way to see what areas people are knowledgable on in the organisation?

4. Do you wish you could sit down and work with certain people in your organisation to improve your skills/ receive some mentorship for?

I would be extremely grateful if you could answer these questions. They are primarily aimed at people working in organisations with more than 50 employees.