... and two I'm not sure if I'd have the knowledge to ask those questions.
Fniff: It may be helpful to check out the starts of some other games here. There will usually be some questions you can use as models, or outright reuse.
Also, as for questions, I haven't got a lot of time or information at the moment, so coming up with a list of questions for everyone is a bit much. Therefore, I'm just going to pose one question to everyone.
Everybody: Since this is a beginner's game, it's more likely that well-used scumtells will be less effective. What strategies do you think would be best in a situation like this, where players may not know what actions to avoid and which ones to look out for?
Scripten: There is no need to make a list of questions for everyone. It can be useful, but as long as you're asking good questions, you're starting well.
Regarding your question: It is generally a good idea to ask oneself whether observed actions make sense from the actor as a townie. Furthermore, a scumtell is more than just a piece of evidence. It is a topic to ask the actor about. Questions about odd/scummy-looking actions help gather evidence for/against scumhood, and help players evaluate the scumminess of said actions.
The newbie tendency to screw up should be kept in mind when looking at everything, as a contextual factor when determining whether an action makes sense for town. It should not overwhelm everything, but it must be considered.
Jack: The potential is there, but it could also show some interesting information depending on their answers. Do you believe there will be a problem with this?
RangerCado: I do not think it will have an effect, as Fniff's answer was very personal. Furthermore, I believe that the chance of influence would not have been a problem in any case. It's a minor RVS question.
On asking questions directed to "Everybody"/"Everyone": This is not the best idea, as people tend to miss these.