Answer:
They can be long or short; they can be grown or bought; they can be painted or left bare; they can be round or square.
What starts with the letter T, is filled with T and ends in T?
I am not alive, though I never die, to no one I've ever told a lie, today I can be god's warrior, and serve him with no horror, but tomorrow I might be devil's knight, for I am what ends the light.
You'll have to consult an optometrist if you want to improve this.
What goes up when the rain comes down?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?