Jim Cramer answers viewers' Twitter (TWTR) questions from the floor of the New York Stock Exchange. First, Cramer breaks down what really happened during Twitter's quarter, which he said looked good on the surface but the conference call indicated otherwise. He explains that he interpreted management's comments on the call as saying that the company expects to have no user growth because people don't understand how to use the product. Cramer says management seems to understand that it needs to make the product easier to use but it doesn't have the answers yet. As far as investors go, that means if you have a horizon of only a quarter or two, be aware that Twitter is not going to deliver within that time frame, Cramer advises. Another viewer asks Cramer to break down what seemed like a pretty good quarter for Alcoa (AA), although there appears to be no bottom in sight for the stock. Cramer said Alcoa is a commodity play and although he believes it's being linked to aluminum unfairly, he's being realistic that commodity stocks are going lower. He also explains what's happening with Panera (PNRA), which one viewer notes lowered guidance and yet shares are up big. Cramer recalls that the company said that the new Panera 2.0 is doing incredibly well, so as they roll out the new Panera, the numbers are going to go higher. If you have a stock question, make sure to tweet it @jimcramer using #CramerQ.