[fzzt]

A lot of these questions touch on important topics, but I think there are too many of them and they are far too specific - to the point where you might be inadvertently signaling some kind of unreasonable inflexibility ("you better be using a particular bug tracking system or else I'm out!"). I'd suggest generalizing and combining many of these. Asking the interviewer to walk you through the development process can be more revealing and is less adversarial than a rapid-fire of 30 questions.

Also, the likelihood that a candidate will be informed of any non-public plans to sell the company are slim...

[ultrasaurus]

Yeah they kind of run the gamut from "you can look this up on LinkedIn" (company size) to ones I'd defer to the CFO "Any plans to sell?" where I doubt you'd get an answer.

One thing I'd add -- don't be afraid to ask the company recruiter questions too. They should know about the training/conference budget, dress code, etc. That'll make better use of your Q&A time with the hiring manager.