A deck of cards.
A mailbox.
9 (Mrs. Smith, Mr. Smith, the 6 daughter and the brother they share)
The living room.
The letter E.
A palm.
It becomes one big haystack.
The maid because it is a circular house (you have to pretend that there is no corners). :-)
A wave.
There are three correct answers 51 and 15, 42 and 24, or 60 and 6.