Hi, i need help with these short questions. Thank you so much.

1) What types of mistakes can the parties make when forming a contract? What are the consequences?

2) What elements would we need to prove in order to rescind a contract on the basis of fraud?

3) What do we need to be aware of when contracting with a minor? With a mentally impaired or intoxicated person?

4) What are the circumstances under which exculpatory clauses will not be enforceable?