A foreigner tries to guess lantern riddles in Mashan town, Wuxi, on Feb 21. When it comes to the Lantern Festival, "guessing lantern riddles" is an essential component. Lantern owners write riddles on a piece of paper and post them on the lanterns in advance. If visitors can answer the riddles, they can just pull the paper out and go to the lantern owners to check their answers. If they are right, they win a little gift. The activity emerged during the Song Dynasty (AD 960-1279). [Photo provided to chinadaily.com.cn]