How to say ummm. i have no idea how to answer the teacher's question. in Japanese

1)ウー、先生の質問は難しくて分からないんだよな。error newjap[ウー、先生の質問は難しくて分からいんだよな。] did not equal oldjap[ウー、先生の質問は難しくて分からないんだよな。] Splitting 先生... split to 先生 and Splitting ... split to and Splitting ... split to and Splitting ... split to and Splitting ... split to and Splitting の... split to の and Splitting ... split to and Splitting ... split to and Splitting ... split to and Splitting ... split to and Splitting 質問... split to 質問 and Splitting ... split to and Splitting ... split to and Splitting ... split to and Splitting ... split to and Splitting は... split to は and Splitting ... split to and Splitting ... split to and Splitting ... split to and Splitting ... split to and Splitting 難しく... split to 難しく and Splitting ... split to and Splitting ... split to and Splitting ... split to and Splitting ... split to and Splitting て... split to て and Splitting ... split to and Splitting ... split to and Splitting ... split to and Splitting ... split to and Splitting 分か... split to 分 and か Splitting か... split to か and Splitting ... split to and Splitting ... split to and Splitting ... split to and Splitting らないんだよな... split to らいんだよ and な Splitting な... split to な and Splitting ... split to and Splitting ... split to and Splitting ... split to and Splitting 。... split to 。 and Splitting ... split to and Splitting ... split to and Splitting ... split to and Splitting ... split to and    
u 、 sensei no shitsumon ha muzukashiku te waka ranaindayona 。
Connect Error: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)