Jim Cramer answers viewers' Twitter (TWTR) questions from the floor of the New York Stock Exchange. He weighs in on Dunkin Brand's (DNKN) amazing quarter and tells investors they have to wait for it to come in now because he doesn't know if the company can duplicate that quarter. But it's not too late to get in on Starbucks (SBUX), he says. He says Johnson & Johnson (JNJ) is faster growing than Procter & Gamble (PG). Of the two, he'd keep JNJ but if you want a company that is not that similar but still in the same industry, go for Unilever (UN) because it's got more momentum. Cramer also answers questions on Petrobras (PBR), Southwest Airlines (LUV) and Ford (F). Starbucks and GM are core holdings in Jim Cramer's Action Alert PLUS charitable trust portfolio. Tweet your questions @jimcramer using #CramerQ.