lets say that "insert random generic rich guy's name here" captures you and takes you to some deserted island with absolutely no hope for escape and he says that you can choose anyway to die as long as it isn't a natural means (so no old age or anything like that) and with his vast riches and strangle hold on the worlds leaders he can get you anyone or anything you'd need to fulfill this
id probably have to go with a one on one combat melee (using any non-projectile close quarters weapon of choice) against the entire population of India or China
id probably have to go with a one on one combat melee (using any non-projectile close quarters weapon of choice) against the entire population of India or China