What should I ask about the car lease?

Here are a few questions that should be answered before you sign a car lease:

What types of leases are obtainable and what are their differences? (Two were explained previously, but dealers may have variations.)
What will the initial costs of leasing be?
What will the continuing costs of leasing be?
Will my initial cost or continuing costs decrease due to a trade-in?
Can I exceed the specific mileage in my lease?
If I take an early termination or a purchase option, how will my mileage allowance be enforced?
If I fall behind in my payments or want to stop leasing, can I sublease?
If I want to terminate my lease before the agreement is up, what happens?
Do I have options at the end of my lease?
What can I expect to pay at the end of the lease?