Editor's note: The following are questions received from viewers of "Mad Money," seen every day at 6 p.m. EST on CNBC.Is J.Crew (JCG) attractive to buy at current levels? -- W.J. from North Carolina Jim Cramer: I am bullish on shares of the apparel manufacturer, which recently went public. The stock has leveled off, following an initial spike, and I believe that J.Crew is attractive in the mid-$20's. What is your opinion of SGL Carbon (SGG)? -- Jeff from California Jim Cramer: The stock is up 13% on the year, but I believe it can still move higher from current levels. The company makes graphite and other carbon fibers, which remain in high demand. Want more Cramer? Check out Jim's rules and commandments for investing from his latest book by clicking here.