G, guardian of M, sold the latter’s parcel of land worth P100,000 for only P90,000. Is the contract rescissible? Explain.

X orally sold his lot to Y for P500,000 and the latter gave an earnest money in the amount of P50,000 which the former acknowledged in a receipt. Later on, X refused to comply with the contract. Can Y enforce the contract against X? Explain.

On December 1, 2020, A entered into a contract whereby B sold his one year production of eggs in his poultry farm for P50,000. Is the object valid?

X and Y entered into a contract for smuggling or importation of contraband. What is the status of the contract? Do they have action against each other if one of them does not comply with the contract? What are the effects?

The President declared a state of emergency due to covid-19 pandemic and the prices of basic commodities are fixed by the government. Suppose you bought kilos of rice and paid an amount beyond that which is fixed by the government, can you recover the excess amount that you paid with legal interest?