Answer:
What body part is pronounced as one letter but written with three, only two different letters are used?
Who has married hundreds but always been single?
It can be grown in your yard or bought at the store and is given for love when less is more?
Never ahead, ever behind, yet flying swiftly past; For a child I last forever, for adults I'm gone too fast.
It's shorter than the rest, but when you're happy, you raise it up like it's the best. What is it?
What is always coming but never arrives?