Gremlins (1984): rules, observations & questions

[Leslie Dame]

1. Origins of the mogwai. Any theories? I mean, we know they are folkloric creatures that are apparently real.
2. Do not expose the mogwai to light, especially sunlight, which will kill it. So they're nocturnal animals. The "sunlight will kill it" seems borrowed from vampire movies, which makes for an interesting twist. This is still within "movie rules that make sense", sort of.
3. Do not let it come in contact with water. But, are they allowed to drink water? If not, what do they drink? Randall's mom was about to make gizmo a hot chicken soup, which is made with water. Ooopsie. Snow is made of water, yet it has no effect on mogwai or the gremlins.
4. Never feed it after midnight. Assuming they have a natural habitat, no one can control their feeding after midnight. And isn't it technically after midnight all the time?

Any thoughts?