Try this one for fun. http://www.alicebot.org/ This is the program that got the Loebner Prize bronze medal for fooling judges into thinking that they were talking to a human being. In the eleven year history of the award no one has ever won the gold or silver medals.

Despite answers such as "Leo said I be capable of learning therefore he classified I as an neural system", one judge ranked ALICE higher than one of the humans, says Wallace.

One wonders if the humans were trying to convince the judges they were human.