Answer in detail with examples if possible. Research questions before writing them.

1. What is capacity you contract - explain with examples
2. What is limited capacity? Explain.
3. What is the contractual element of Intention? What does it signify?
4. Can Minors be held accountable for contracts they sign?
5. What are illegal contracts, explain.
6. Mr.Singh and Mr.Sidhu went to a bar on a Friday evening. They were discussing real estate and Mr Singh offered to buy Mr.Sidhu's house for $100k over market price. Mr. Sidhu agreed, and a contract was written up on a piece of paper and signed by both parties. The next day Mr. Singh realized his valuation error and refused to give Mr.Sidhu an advance deposit for his purchase claiming he was drunk beyond recognition. The bartender noticed Mr Singh walking and driving away in his car that night. Can this contract be enforced? Please give long answers without any plagiarism.