Three questions at a project manager interview

I suggest everyone to write in the comments three questions that, in his opinion, be sure to ask the PM at the interview. Options leave in the comments of the first level, the form of any questions. As a result, we will receive material for the questionnaire, which will help to identify a good project manager from the total mass of candidates.

My version is under the cut.

1. What is effective communication? Give examples.
2. How to motivate people to complete the task efficiently and on time?
3. Given: a task estimated at 2 person-months of development, two programmers, one tester, PM.
   Starting date: 01.12.2009. When will the project be delivered?

Those who want to show their knowledge and experience are invited to the comments of the second level.