Greetings. These may not be warts- i guess you are talking about seborrhoeic keratoses and DPNs. These can be easliy removed by laser or by radiio frequency ablation . the cost varies from place to place and clinic to clinic- based on the method and hte machine used, number of lesions/number of areas treated. See a qualified dermatologist near you. Warm regards, Dr Govind Suresh Mittal, Bengaluru.