Mutualism refers to a relationship in biology or sociology that is mutually beneficial to two living things. This relationship can be within species, one species to another, between individuals in a society and between two societies.
Asking can also be a form of mutualism.
It benefits the person asking, and the person giving.
If you have a specific question, which you couldn’t easily find an answer to on the internet, that the person you’re asking happens to have some knowledge and interest in they’d likely be overjoyed to talk to you about it.
And you benefit of course from receiving an answer to your question, and maybe a new friend.