Riddle: once there was a man and his wife and only once a week the man would give the wife a peice of cheese and that is all the food she got. One week when the man returns to feed the wife he finds her dead and this was fifteen years after he started doing this routine of feeding her cheese only once a week. how did she survive just eating one piece of cheese a week.
Answer: When she ate the cheese shortly after she had to poop so she just kept eating her poop and living untill one day she had no poop left to poop. so she died.