The Street's Action Alerts PLUS Portfolio Manager and host of CNBC's 'Mad Money' Jim Cramer answered viewers' social medial questions on Apple (AAPL) Monday from the floor of the New York Stock Exchange. Cramer said Apple is under pressure because of weakness from a supplier, but for investors for don’t own it, it’s an opportunity to buy, especially if the stock drops to $105 or $110. Another viewer asked about Pfizer (PFE) and Merck (MRK) ahead of earnings. Cramer said Pfizer has done well and he thinks the company is looking to do a big deal. On Merck, Cramer said the company has lots of different drugs that are doing well, and he thinks the stock can rally from current levels. Another viewer asked about Boeing (BA) as a long term holding. Cramer said Boeing had a fantastic earnings call and confirmed there have not been order cancellations, dismissing comments Delta (DAL) had made about a glut in wide-bodied planes. Send your questions to Jim Cramer on Facebook or on Twitter, @JimCramer, using #CramerQ.