How does Specific Performance work? When is it used and when is it not used?

What are punitive damages? When can you get punitive damages involving a contract? What is another name for punitive damage?

What does it mean to "discharge your duties" under a contract? What is one way to discharge your duties?

What happens when a contract is "impossible" or "improbable" to perform? What is an example where those excuses relives one of their duties to perform?