Answer:
What is always coming but never arrives?
I can be long or short. I can be grown or bought. I can be painted or left bare. My tip can be round or square. (one word)
I cannot be burned in fire or drowned in water. What am I?
I hold two people together but touch only one. What am I?
I am a room that has a roof but no walls. What am I?
I'm the source of all emotion but I'm caged in a white prison.