Humility is the freedom of pride and arrogance. It is not allowing ourselves to get in the way of ourselves helping others.
We can use questions to do that. How?
We use questions that seek to expand thinking... instead of criticizing leaders in "got'chya" style questions, like we see poor journalists do, we invite leaders to open their eyes to expansive points of view.
The same could be said for those people in our charge.
Instead of "why did we miss this?" we ask, "what is our opportunity to catch more things like this in the future?"
Instead of asking "why are you falling behind in class?" we ask, "what opportunities do you see to help improve your grades?"
These questions remove our need to be better - our pride and arrogance - and instead set up up the person we're seeking to serve for success.
Questions are a form of effective servant leadership.