Liposuction can be very effective at reshaping your figure. How many inches you lose from your waist with liposction depends on how much fat you have in that region. Losing 5 or 6 inches from your waist may or may not be feasible with liposuction alone. Liposuction removes extra-abdominal fat only, so if you carry a lot of intra-abdominal weight then liposuction will not give your the results you want. Also, a 24 inch waist is quite small, and is not necessarily attainable with liposuction or weight loss in all people. Depending on your genetics, frame, and body type. it may or may not be a feasible goal. I recommend consulting with a board certified plastic surgeon to see if this is an achievable and safe goal for you. Good luck!