Answer the following questions based on sample cases:

1. Ram gives his watch to Mohan to be used for two days during examinations.Mohan keeps the watch for a week.While going to Ram's house to return the watch, Mohan accidentally slips and the watch is badly damaged.Who will bear the loss and why?
2. A entered in a contract with B to supply wheat flour at specified rates.The contract carries the stipulation that A is entitled to higher rates only in case of a rise in price of wheat by the Government and in case of dispute, the matter will be referred to the sole arbitrator appointed by both the parties.The arbitrator allows the claim of A for higher rates due to rise in the market price.B applies to the court for setting aside the award.Can he succeed?
3. 'A' had his nephew (a minor aged 8 years) missing from home. 'B' was 'A's servant, and he was sent to search the missing boy. After B had left in search of the boy, 'A' issued handbills announcing a reward of Rs. 5001 /- to anyone who might find the boy. 'B' who was ignorant of this reward, was successful in searching the boy.When he came to know of the reward, which had been announced in his absence, he brought an action against the employer 'A' to claim this reward. Is 'A' liable to pay a reward to 'B'? Justify.