Imagine you had a coworker who was like Leonardo Da Vinci and Einstein and someone with the power to access the hive mind of Reddit wrapped up in one but had dementia and sometimes spoke believably while completely hallucinating and lying, so you still needed to verify their work or take their answer and double check it.

Now imagine they have zero problem with you interrupting them to ask the stupidest question or the most profound, difficult question, as long as you want, and if you don't like their answer you can tell them to try again. And they don't care how often you do either.

What kinds of questions might you ask that coworker in the course of your work? It's highly individual.