NEW YORK (TheStreet) -- TheStreet's Jim Cramer answers Twitter  (TWTR - Get Report) questions from the floor of the New York Stock Exchange on Tuesday, and this week's first question asks if Priceline  (PCLN) is at a good entry point.

Cramer notes Priceline, scheduled to report earnings on Thursday, puts out headlines that include guidance, which is almost always much weaker than expected. The stock then takes a dive in after-hours trading, which Cramer says is your chance to get into the stock.

The next user asks how much upside General Motors  (GM - Get Report) and Ford  (F - Get Report) have right now. Cramer says activists have driven GM's stock up but there is still a good yield. He likes the stock but he expects a pullback because the activists aren't going to be at work every day.

Must Watch: Cramer Answers Twitter Questions on Priceline, Ford, Under Armour

Ford, he says, is about Europe turning around, which means investors can buy the stock.

The next question compares Nike  (NKE - Get Report) to Under Armour  (UA - Get Report) and asks if Under Armour is overvalued and if Cramer expects a pullback soon in the latter. He replies by noting Under Armour's 30% growth and says it's never really going to fall out of favor with that kind of growth. He also says this growth could be multi-year.

Nike, Cramer says, seems to be the cheaper of the two. He thinks there is good Chinese consumer spending and thinks Nike is taking some share away from Adidas. So Cramer says this is six of one and half a dozen of the other. Nike is the classic senior growth and Under Armour is the classic junior growth.

Another user is still in Freeport-McMoRan  (FCX - Get Report) and asks if he should double at these levels. Cramer says it's the "ultimate call" if you think oil prices are going higher, but he says it's a "complete hold" right here.

The next question asks for a target price for Apple  (AAPL - Get Report) , and Cramer says he doesn't give them. He says he would like to see it trade to a market multiple on whatever the earnings are and reiterates his stance that investors should own Apple, not trade it.

The final user asks if he should buy Yahoo!  (YHOO) on the chance of a buyout of or merger with AOL  (AOL) . Cramer replies that you never want to buy Yahoo! on a buyout, but you do want to buy it because of its great capital discipline. He says CEO Marissa Mayer has done some good things with Alibaba  (BABA - Get Report) .

Cramer adds the stock is very cheap ex-Alibaba because Yahoo! has its tax situation down. He says to forget AOL, which he calls an "also-ran."