1. Raul bound himself to give a car to his son, Anthony, on the condition that Anthony must pass the 2019 accountancy board examinations. When Anthony passed the said examinations, Raul refused to give him the car on the ground that the condition was a purely potestative one. Is Raul correct or not? Explain your answer

2. In January 1, 2019, Perry bound himself to sell to Olive, his niece, a house and lot which is being rented by another person, if Olive got married before 2020. Luckily for Olive, she got married on December 31, 2019. Olive then bought the house and lot from Perry by February 2020. Upon interview with the tenant, Perry had not collected the entire 2019 rental. Is Olive entitled to the accrued rentals before she got married? Why?

3. Mario Simpatico bound himself to Juliana by writing to her a letter. He wrote: “To Juliana, my one and true sweetheart, I obligate myself to give you my one and only horse when I feel like it." Months passed but Mario never bothered to make good his promise. Can Juliana obligate Mario to bring her his one and only horse to be given to her?

4. Felix and Gary were very good friends. Felix borrowed P100,000.00 from Gary. Because of their close relationship, the promissory note executed by Gary provided that he would pay the loan “whenever his means permit.” Subsequently, Felix and Gary quarreled. What should Felix do in order to collect the P100,000.00?