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NEW YORK ( TheStreet) -- Here's what Jim Cramer had to say about some of the stocks callers offered up during the "Mad Money Lightning Round" Wednesday night: Toll Brothers ( TOL - Get Report): "That one is a buy, buy, buy." ImmunoGen ( IMGN - Get Report): "I think you should pull the trigger and buy." Dollar Tree ( DLTR - Get Report): "I like Dollar Tree. I also like shopping there." MDU Resources Group ( MDU - Get Report): "They have a good yield and a steady business. I like it." Krispy Kreme Doughnuts ( KKD): "I think it's OK but Dunkin Brands ( DNKN - Get Report) is too cheap. I'd go there." Genworth Financial ( GNW - Get Report): "I think the quarter is going to be good. They have a Radian Group ( RDN - Get Report)-like business. I think it's going higher." Exelixis ( EXEL - Get Report): "That's a good speculative situation." Gafisa ( GFA - Get Report): "That's too hard. I'd rather see you in iShares MSCI Mexico ( EWW - Get Report). That's a better situation. " To read a full recap of "Mad Money" on CNBC, click here. To sign up for Jim Cramer's free Booyah! newsletter with all of his latest articles and videos please click here. To watch replays of Cramer's video segments, visit the Mad Money page on CNBC. -- Written by Scott Rutt in Washington, D.C. To email Scott about this article, click here: Scott Rutt Follow Scott on Twitter @ScottRutt or get updates on Facebook, ScottRuttDC