Beginning from the Song Dynasty (960-1279), guessing riddles is regarded as an indispensable part of the Lantern Festival. People write all kinds of riddles on pieces of paper,and paste them on colorful lantern to let visitors guess. If one has an answer to a riddles, he can pull the organizers verify the answer. Gifts are presented to the people who get the right answers.
Because this intellectual activity is exciting, people from all walk of life enjoy it.