Answer:
One might hang a locket from this
What hangs in the sky by day but at night goes away?
I can be as thin as a picture frame but my insides have many things you can see.
What leaps one time out of four?
In many hallways you would stand, if not with this in hand.
How did the farmer find his wife?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?