11.
Section 74 applies

14.
In cases of general offer, for a valid contract

15.
A contingent contract based on the specified uncertain event happening within a fixed time under section 35

16.
In case of co-sureties, release of one surety by the creditor

17.
Ramesh employs Suresh to beat Mahesh. Ramesh promises to indemnify Suresh against all the consequences of the act. Suresh beats Mahesh and has to pay damages to Mahesh for the beatings committed upon him.

19.
A applies to a banker for a loan at a time when there is stringency in the money market. The banker declines to make the loan except at an unusually high rate of interest. A accepts the loan on these terms.

20.
Where a contract consists of reciprocal promises and such reciprocal promises are to be simultaneously performed: