Jim Cramer answers viewers' Twitter questions from the floor of the New York Stock Exchange. He weighs in on which spinoff is the best to buy in 2015, whether Gilead is overdone here and even gives his thoughts on Twitter itself after the stock received a BUY rating from analyst firm Argus. Cramer, who believes a different CEO could better capitalize on the pure promotion Twitter receives from it being so widely used, says now he wants to wait and see what chief executive Dick Costolo will do. Cramer also talks the cyber security trend and the best way to play it, plus reveals whether he is still long on Vale and why. Make sure to tweet your questions for Jim @jimcramer every Monday using #CramerQ.