Principle: An agreement enforceable by law is a contract. An agreement made without free consent is voidable at the option of the party whose consent was so caused.\nFacts: A threatens to shoot B if B does not sell his ancestral house worth Rs. 50 Lakhs for Rs. 5 Lakhs. B signs the deed under threat.\nIs the contract binding on B?

Yes, because consideration was paid

No, the contract is voidable at the option of B because his consent was obtained under coercion

The contract is valid and irrevocable

Principle: "Damnum Sine Injuria" means damage without legal injury, and no action lies in tort for such damage.\nFacts: X sets up a competitive school in the same neighborhood as Y's existing school, causing Y's students to switch and resulting in heavy financial loss to Y.\nCan Y sue X for damages in tort?

No, Y suffered financial loss without any violation of a legal right (Damnum Sine Injuria)

Yes, because Y suffered heavy pecuniary loss

Both must divide their school profits equally