For example, is the question phrased for a positive, negative, or neutral response? Do the positive (yes is good, no is bad) and negative response alternate? Is it clear what the question is trying to measure (how do you feel about our price? v. How does our price compare to other companies?
The specific design of the questions is critical to the value of the information. Using my background in psychology, marketing, and as a professional interviewer, I will develop questions that collect the information you intend to draw from the survey.