a. Playing a decent game of table tennis

Kuka Robotics recently developed a ping pong playing robot. Although it cannot compete with skilled human players, it is capable of entering into long rallies. The robot uses calculations that include the position of the ball, position of the opponent, position of the paddle to predict the ball’s trajectory, and determine the force of its return. Thus, AI can play a decent game of table tennis and may be competitive sometime soon.

http://www.gizmag.com/omron-ping-pong-robot/34209/

c. Driving in Victorville, CA

In 2007, a 35 teams gathered in Victorville to navigate public roads and various scenarios with autonomous vehicles. These cars navigated in conjunction with human drivers as well as other bots, thus this task has been tackled by AI.

http://www.roadtripamerica.com/GettingOutThere/DARPA-Urban-Challenge-2007.htm

k. Performing a complex surgical operation

Currently, many surgeons make use of robot-assisted surgery. That is, they perform surgery using a surgical robot as a physical extension of themselves. Although mechanically possible, as evident in robot-assisted surgery, surgical robots cannot currently operate on their own, due to insufficient AI capability. The current difficulties in developing the AI include real time decision making in the face of changing conditions.

http://nymag.com/next/2015/04/robot-could-make-surgery-safer.html