Robots deliver dishes to customers at a Robot Restaurant in Harbin, Heilongjiang province January 12, 2013. Opened in June 2012, the restaurant has gained fame in using a total of 20 robots, which range in heights of 1.3-1.6 metres (4.27-5.25 ft), to cook meals and deliver dishes. The robots can work continuously for five hours after a two-hour charge, and are able to display over 10 expressions on their faces and say basic welcoming sentences to customers, local media reported. REUTERS/Sheng Li (CHINA - Tags: SOCIETY SCIENCE TECHNOLOGY FOOD)