Can you explain these cases on unenforceable contracts?

1. X sold to Y real estate for a stipulated price. The agreement was oral. X has not yet delivered the real estate. Y has not yet paid the price. Y offered to buy, but X refused to go ahead with the agreement. Under the Statute of Frauds. to be enforceable. an agreement for the sale of real estate must be in writing (Art 1403 [2e]); Y sued for specific performance. X's attorney objected, setting up the Statute of Frauds as the reason for the objection. a. May the contract he proved by the oral evidence? b. Suppose in the above problem, the price had already been paid. would your answer be the same? 2. X and Y, neighbors, orally agreed that X would sell and Y would buy X's phone for $200 three years from the date of agreement. At the end of three years, X refused to hand over the phone although Y was willing to pay. Is the agreement enforceable under the Statute of Frauds? 3. X and Y. neighbors, orally agreed that from that day, Y would not erect a garage on his property till after three years. A week later. Y began to erect the garage in violation of the agreement. X complains and Y sets up the Statute of Frauds. What's the decision? 4. A servant had an oral contract which allowed him $100 a month salary. He served continuously for twelve years. Master refused payment on the ground that the contract having lasted for more @ 1 year. the same should have been in writing to be enforceable. Is the servant entitled to pay? 5. X and Y orally agreed in 2006 to marry each other in 2010. When 2010 came. X refused to marry Y. who now seeks damages. Would Y be allowed to prove the oral agreement