Answer:
What do you have in December that you don't have in any other month?
What instrument plays from the heart?
In a year, there are 12 months. Seven months have 31 days. How many months have 28 days?
I'm a long curved fruit that grows in clusters and has soft pulpy flesh and yellow skin when ripe.
If you agree give me one of these.
What sphinxes employ and players enjoy.