We have had many questions for interviewers to ask interviewees. But none addressing information flow in the other direction, interviewee to interviewer. Just an indirect question about "deal breakers" and one about "finding dream jobs".

What I'm after is when you're interviewing at a company do you have a set of questions that you like to ask to help get a feel for the company and the work environment?

I have a series of questions that I like to ask that range from the development environment to testing techniques to how the team get on together.

Anything else you'd like to ask?

Edit: I moved my original list of interviewer questions to my answer below. I've also gone through the other answers and added the ones thought were useful in to that answer. The answer is community wiki so feel free to add anything useful.

N.B. This is my first cut of categories. Feel free to modify/add/etc. the categories. Or to recategorise the questions themselves.