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

In response to one viewer seeking his outlook on Tesla  (TSLA), Cramer said it can be considered a "cult stock," which means it can go higher based solely on the fact people like its cars. Cramer says he doesn't get in front of cult stocks -- and won't tell people whether to buy them or sell them.

Over in biotech, one viewer asked whether he should go for Celgene  (CELG) or Biogen  (BIIB), which Cramer said is a really difficult call. He said Biogen has what he call an "incredible" Alzheimer's formulation coming down the pipeline, while Celgene has done great "blocking and tackling." The more conservative, on an earnings basis, is Celgene, according to Cramer, while Biogen is the one to go for if you're looking for more of a speculative play off its next drug.

Cramer told another viewer that his opinion on Jarden  (JAH) has not changed, and he likes the stock very much. People are spending money on their homes so Jarden is well positioned because it has what Cramer called "the best housewares." He added that Martin Franklin, Jarden's founder and executive chairman, has put together a remarkable company with fabulous cash flow, and it's one investors should own.

When it comes to Wayfair  (W), Cramer said the company offered some pretty terrific numbers recently. While he said Williams-Sonoma  (WSM) is even better, he likes both stocks. When another viewer looked for advice on whether to buy Disney  (DIS), Cramer acknowledged the stock is not cheap but the company has events on the horizon like the new Star Wars film and the opening of its Shanghai theme park. He said he would own the stock and accumulate more shares on any dip.

Tweet your stock questions @jimcramer using #CramerQ.

At the time of publication, Jim Cramer's charitable trust Action Alerts PLUS held no positions in stocks mentioned.

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