NEW YORK (TheStreet) -- Jim Cramer answered viewers' Twitter (TWTR) questions from the floor of the New York Stock Exchange.

When one viewer asked him what's going on with Intel (INTC) after its $16.7 billion deal for Altera (ALTR), Cramer acknowledged that there are people who believe that Intel paid too much for the company. However, Cramer explained why he believed not only is it a good tie-up between the two companies, but Intel is doing what it needed to by being aggressive. He stressed that Intel chief executive Brian Krzanich is doing the right thing.

In biotech, Cramer advised another viewer not to sell Amgen (AMGN). While it's not one of his "four horsemen" and he believes Gilead (GILD), Biogen Idec (BIIB), Celgene (CELG) and Regeneron (REGN) are all doing better, Cramer explained that Amgen has some incredible anti-cancer formulations that he's very keen on. He believes investors should stay with the stock.

As for Costco (COST), after May same-store sales came in flat, Cramer revealed that he believes the stock is a buy here. He explained that a lot of numbers would be looking a lot better if the U.S. dollar were weaker. In fact, Cramer said that's the key to this market -- the U.S. dollar has to to get weaker.

A viewer who read Cramer's book Get Rich Carefully noted that Baxter International (BAX) is scheduled to break itself up, much like what Cramer said the company should do in his book. Cramer said he endorses what Baxter is doing and thinks the company's actions presents an opportunity for investors.

Plus, Cramer weighed in on CBS (CBS), which he calls a cheap stock. But the company will face a battleground as the fight for international rights to the NFL heats up.

Tweet your stock questions @jimcramer using #CramerQ.

At the time of publication, Jim Cramer's charitable trust Action Alerts PLUS held TWTR.

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