* @return ordered questions
   */
  public Questions getQuestionsOrderedByNumber(boolean ascending) {
    Questions orderByNumber = null;
    try {
      OrderCriteria criteria = OrderCriteria.defineOrder("number",
          ascending);
      orderByNumber = (Questions) getEntities(criteria);
    } catch (OrderException e) {
      log.error("Error in Questions.getQuestionsOrderedByNumber: "
          + e.getMessage());