Riddles have been in China for over 2000 years. It can be complicated at scholar's level, yet is also the fun among common people. From the Song dynasty, riddles on the lanterns became popular. Riddle lanterns have already been hung in old town bazaar of Shanghai. In the former French concession, local neighbourhood has organised riddle activity. People put up riddle paper in the XiangYang Park and enjoyed the guessing game.