The King and the Riddle — Ann A. Guerra; Daniel Guerra

Once upon a time, in a remote kingdom, there was a king who liked to hear riddles. But when there were no new riddles he became bitter, and he became a cruel and unjust king. They had put up signs everywhere asking for a riddle to the king. Many came with riddles, but no new ones. This angered the king. Then he made a decree. The one who brought him a riddle would receive half of his kingdom and the hand of the princess his daughter ......