You could turn the tables on them...
- So, Mr. Chief Executuve, where do you see yourself in 5 years?
- Do you have any weaknesses?
- Tell me about a situation where you demonstrated good decision making..
Or alternatively you could ask them where the company is going, what new markets it plans to go into. You could talk about the strategy for the company, but always tie back to what you can offer the company. Its not a "clap each other on the back" talk, its always going to be "how can you help us".
Read up on the companies competitors, how can they be taken on?
How will your role progress? You can suggest possibilities to the company, again the company dont want to just pay you for nothing, they want to see that you have ideas and are enthusiastic about trying to improve things. Sounds cliched but its true.