Answer:
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 am the kind of fish that chases a mouse.
You can see me in water, but I never get wet. What am I?
A young man wants to have me but when he has me, he no longer wants me. What am I?
I wear a red robe with staff in hand and a stone in my throat.
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.