NEW YORK (TheStreet) -- TheStreet's Jim Cramer answers Twitter  (TWTR - Get Report) questions from the floor of the New York Stock Exchange, and this week's first questions asks what he thinks of Caterpillar  (CAT - Get Report) .

Cramer notes the "disturbing numbers" the company released Monday with regard to volume in China. He says Caterpillar remains range-bound, waiting for a world economic turn, or at least a mineral turn, after the stock's big run this year.

Another question asks for Cramer's thoughts on Priceline  (PCLN for the rest of this year and for 2015. Cramer replies that Priceline will have increased competition, which makes him want to shrink the multiple. He also thinks people won't want to pay up for the earnings. Cramer notes he liked the company for a very long time, but he has cooled on it.

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The next question asks if it's time to start a position in BlackBerry  (BBRY . Cramer says no because he thinks the company has more rumor to it than substance, though he does like new CEO John Chen.

STOCKS TO BUY: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12 months. Learn more.