Hii can I ask for the explanations for these? This is from my subject in Law of Sales.

1.) Ms. Kami sold her house and lot located at Brgy. Lala, Lot 3, Covered by Certificate of Title No. 123 to Ms. Shrimp for Php 10,000,000.00. After delivery of the property, Mr. Maro went to Ms. Shrimp and demanded that the latter vacate the property due to the fact that Mr. Maro is the actual owner of the property and not Ms. Kami. Mr. Maro showed Ms. Shrimp documents which proves his undisputable ownership thereof. Because of said proof, Ms. Shrimp vacate the property and surrendered it to Mr. Maro. Can Ms. Shrimp as for warranty against eviction against Ms. Kami? Justify.

2.) Ms. Taliko Jenik wanted to buy a swimming pig to enter into a contest. Ms. Jenik went to Ms. Sexy to buy a swimming pig. Ms. Sexy showed Ms. Jenik a pig and told the latter that said pig can swim. Because of that Ms. Jenik bought the pig for Php 30,000.00. As it turns out the pig cannot swim. Ms. Jenik would like to sue Ms. Sexy for breach of warranty; Ms Sexy on her part puts up as a defense that she never guaranteed that the pig can swim. According to Ms. Sexy her statement that "the pig can swim" is a mere expression of an opinion. Can Ms. Jenik claim for breach of warranty? Justify.

3.) Ms. Baba sold her land 100 square meters land located at Colon Street covered by Certificate of Title number 9877 to Mr. Hasyendero at Php 100,000/square meters for a total price of Php 10,000,000.00. The said contract specified the quality of land for it would be used as a vegetable farm. As it turns out the quality is less than stipulated and the actual value of the land is only Php 9,000,000.00 due to the inferior quality. Mr. Hasyendero would like to rescind the sale citing as basis the 10% inferior quality of the land sold. Can Mr. Hasyendero rescind the contract of sale for reason of inferior quality? Justify.

4.) Ms. Nana sold her car with plate number SEXY 8888 to Ms. Piko on March 1, 2021 to be delivered on March 3, 2021. On March 2, 2021, Ms. Nana bought a car cover for the car. At the delivery date, the car cover was removed by Ms. Nana which prompted Ms. Piko to demand the delivery of said cover. Should Ms. Nana include the car cover in her delivery of the car? Justify.