public static string deleteQuestionaire(List<string> _arr)
{
SBObj _sbobj = new SBObj();
_sbobj.QuestionID = Convert.ToInt32(_arr[0].ToString());
_sbobj.Question = _arr[1].ToString();
_sbobj.Answer = _arr[2].ToString();
_sbobj.Difficulty = _arr[3].ToString();
return _sbobj.DeleteQuestionaire();
}