Where should we use does?

Could you please clarify for me, where exactly in a sentence would be the appropriate placement for the word 'does' when it's used as a question word? I've noticed that its positioning seems to vary depending on the context, and I'm curious to understand the rules behind it. Is it always placed at the beginning of the question, or are there certain scenarios where it could be used mid-sentence? I'd appreciate any insights you could offer on this matter.