Answer:
What never ends but you always have it
You can find me inside your body but not below the waist or in your tummy. I am located in the upper part and I am a symbol of love.
What kind of room has no doors or windows?
I am green and ugly and come out at night with a crumple old broom. Who am I?
What would you father's only sister's sister-in-law be to you?
If it’s information you seek, come and see me. If it’s pairs of letters you need, I have consecutively three. What am I?