Once, a king was looking for a suitable bridegroom for his daughter. He proclaimed in the city that whoever would answer his question correctly would be married to the princess. The question was that who or what makes people cry.
Many people answered the question but all were wrong. Just then, a young farmer came to the court and gave the answer “rain”. When the king asked for an explanation, the farmer replied, “It makes the farmer happy as his crops grow well. It makes the potter unhappy as he needs sun to dry his pots.”
The king felt very happy and got his daughter married to the young farmer.
Source : https://www.kidsfront.com/stories-for-kids/the_correct_answer.html