Riddle: A king had two sons. The king was getting very old and he didn't know who to give his kingdom to. So he got his sons together for a horse race. He said "Whoevers horse crosses the finish line last gets my kingdom. So they both started out very slow until they came to a man on the side of the road. He asked why they were riding so slow. They told him their story and the man gave them two words of advice. After hearing these words they took off as fast as they could. What were the two words of advice?
Answer: Switch horses.
The king said whoevers horse crossed the finish line last would win. So by being on the other persons horse they would want to cross first.