What kinds of mythological questions are on topic?

Question

Understanding the context and influences of certain pieces of literature requires understanding the mythology of the culture it came out of. So I would think some questions about mythology should be relevant. On the other hand, this is not mythology.SE, so other questions (e.g., "What's the difference between Odin and Zeus?") should probably not.

Here are some ill-thought-out examples to start the discussion. Feel free to edit better examples into this question:

1. Where do the Sirens in the Odyssey come from?

2. How did the idea for the Sirens arise or evolve in Greek mythology?

3. In Greek mythology, do Sirens want to lure men to their deaths?

Answer 1

I vote to welcome any mythology questions that are connected to a written source. (But see also Does Oral-Literature count as literature here?)

Using this as a distinction, only the first of your example questions remains on-topic. If it is not directly answerable from relevant work, we should be allowed to draw from other mythos as well.

However, general questions about mythology, if they aren't asking about a particular written work, aren't really our area.

_{Note that this doesn't contradict with previous consensus about overlaps with Mythology SE}