Under Section 24 of the Indian Contract Act, 1872, if any part of a single consideration for one or more objects, or any one or any part of any one of several considerations for a single object, is unlawful, the agreement is:

A master asks his servant to sell his bicycle to him at a price well below the market value. The consent of the servant is presumed to be obtained by:

What is the primary principle underlying the payment of damages for breach of contract?

Under Section 131 of the Indian Contract Act, 1872, the death of the surety operates as a revocation of a: