Answer:
There was a little heart inside a little white house, which was inside a little yellow house, which was inside a little brown house, which was inside a little green house.
What fruit is of great use in history?
What food goes on and on without a beginning, middle, or an end?
Sauerkraut owes its existence to this head
What can be opened but cannot be closed?
What do pandas have that no other animal has?