What Am I Riddles

Question: Though I live beneath a roof,
I never seem to dry.
If you will only hold me,
I swear I will not lie.

What am I?

Question: I am the thing that is used to make your weight. What am i?

Question: What has no beginning, end, or middle?

Question: Draw, fire, or fill me;
I'm still empty.

What am I?

Question: I'll bring out your bulls,
and slow your roll.
I may even come out of your skull.

What am I?