Jim Cramer answers viewers' Twitter questions from the floor of the New York Stock Exchange. This week, he tells one viewer who believes Walmart is oversold that he doesn't want to own the stock until the retailer figures out a way to do both dollar stores and high-end. He also sheds light on Yelp's valuation and the Kinder Morgan reorganization. He tells shareholders of Kinder Morgan companies like El Paso Pipeline Partners and Kinder Morgan Energy Partners not to sell and to be thrilled about receiving Kinder Morgan stock. Plus, Cramer answers questions on Hain Celestial, WhiteWave Foods, Gilead and Celgene. Tweet your questions to @jimcramer every Monday using #CramerQ.