These are my top 5. Usually I think its common sense especially if your the one applying for the job, one would assume that you want the job if it was offered to you.
1. Is the job described what your actually going to be doing?
2. Team/Company Culture, did you meet the team? how are the managers? the company values? etc..
3. Salary expectations (whatever yours is or anyones is) don't be afraid to negotiate if you feel its to low.
4. Do you see your self here for more than a year?
5. Room to grow, do you want to become a manager? or a senior developer? what options are available to you?
For the matter of the Team/Company culture, I'd also add - Do they expect you to come in and merge into a unchanging culture, or would you add to, and change the culture?
1. Is the job described what your actually going to be doing?
2. Team/Company Culture, did you meet the team? how are the managers? the company values? etc..
3. Salary expectations (whatever yours is or anyones is) don't be afraid to negotiate if you feel its to low.
4. Do you see your self here for more than a year?
5. Room to grow, do you want to become a manager? or a senior developer? what options are available to you?