(1) Sevie, being in need of money, sold to Benie for P500,000, his right to inheritance from his father who has died telling Benie that he believes that its value is more than P500,000. It turns out that the value is only P300,000. Is Sevie liable to Benie for the difference?

(2) Cedie, creditor, assigned his credit against Dobie, debtor, to Teodie, without securing the consent of Dobie. Subsequently, Dobie paid Cedie who became bankrupt. Has Teodie the right to recover from Dobie the payment made to Cedie?

(3) Sambe exchanged his parcel of land for the new car of Bembe. It turns out the car was subject to a chattel mortgage and was sold at public auction for failure of Bembe to comply with the conditions of the mortgage. What rights are given by law to Sambe?

(4) Sambe exchanged his parcel of land for the new car of Bembe. Thereafter, Bembe was judicially evicted from the land by Chambie who was adjudged the true owner in an action by him against Sambe. What rights are given by law to Bembe?