Explain the following situations:
Mr and Mrs Hill were both sitting up reading in their double-bed late one night. Finally Mrs Hill got up, turned out the light, and went to sleep. Even though it was now completely dark, Mr Hill kept on reading.
John lived on the 14th floor of an apartment building. Whenever his mother visited, she had to be content to get off at the 8th floor and walk the rest of the way — even though the lift went right to the top.
Last night Peter turned off the light in the bedroom and managed to get into bed before the room went dark, even though his bed was on the other side of the room.
A lady found a fly floating in her vegetable soup. Embarrassed, the waiter apologised and returned the soup to the kitchen. He then simply removed the fly and brought back the same plate of soup. After one taste, the woman said, "This is the same soup."