I wasn't involved with this, but since you asked for feedback, I'll share some personal opinions:
If you're asking how to improve the questions, one way would be to flesh them out.
It might be helpful if the questions stated the requirements more explicitly. When I see a very short question, I often start to wonder if maybe there are some requirements that haven't been stated explicitly. Ideally, a question should be specific enough that an answerer will know in advance whether their answer meets the requirements, and that voters have criteria they can use to cast their vote.
To be more specific: Would you accept any solution that achieves the desired functionality? Or only a solution that can be accessed through the specific website you are using? For example, are you OK with solutions that use an extension or add-on, use a userscript, use software installed on your machine to interact with the website, etc.? I don't think I would have characterized the questions you listed as crystal clear; not everyone starts from the same place you start from, so it might help to articulate your assumptions.
How can I forward a MMS in Google Voice? asks about forwarding a MMS. It might help to tell us what the specific requirements are, and approaches you've considered and why you've rejected them. For instance, have you considered taking a screenshot of the MMS and sending it in a new message? Have you considered copying the contents of the MMS and pasting it into a new message? I find it hard to tell from the question whether you'd consider those to be acceptable solutions, which makes me think that the question might be stronger if it stated the requirements explicitly. When there are obvious candidate answers, it's often helpful to address them directly in the question. This shows that you've done your research, clarifies what are the contours of an acceptable answer, and spares others from spending their time to suggest ideas you've already considered and rejected.
How can I view how many texts I received from a given phone number on Google voice? asks about counting texts. What approaches have you already considered? Have you considered searching for that phone number, opening the screen with the conversation with that phone number, and manually counting the texts? Is that an acceptable solution? I can't tell. If it's not, that suggests that you have a requirement that you haven't stated. It would be helpful to explain that you considered it and rejected it and state explicitly the requirement that it violates. Do you have Google Voice set up to email you when you receive a text? Do you have archives of those emails?
I anticipate it's possible that there might be mixed opinions about questions of the form "How can I do X in website Y?" if Y doesn't have feature X and you're not willing to accept other ways of achieving your goals.
These are just my personal opinions, shared since you requested feedback. I hope you'll take them in the spirit intended -- namely, suggesting some possible options that you could consider. I do not intend to criticize you or call out these questions.
