The product has more than 1000 questions that will help you prepare for competitive entrance exams (GRE, GMAT, MCAT, SAT etc), interviews as well as increase your mind power leading to success in your personal, social and professional life. Most of the answers come with proper explanations. There are four difficulty levels. Questions will be updated on regular basis. It also maintains high scores for each type of quiz. It converts your Pocket PC into an intelligent and interactive mind trainer. Ideal for anyone who enjoys thinking!