A weighty issue I provide. If you step on me, you may groan or you may get excited. I can also be used to describe something in a smaller or bigger manner. What am I?

I rest on tables, filled with fare, or race down lanes through open air. I cradle meals or chase a strike, I’m one word that lives a double life.

I'm made of parts That share my name, Yet don't assume That we're the same. They're bound in words, While I may roam, To some far place Beyond our home.

When it's hot outside, dip into me, and splash around with joyful glee. No matter if I'm deep or shallow, as long as there's water in me, life feels mellow.

I am the belly of the castle, but I have no hunger. I am a place for the forgotten, yet heroes seek me out for glory. In one world, I am stone, cold, and heavy with chains. In another, I am made of paper, plastic polyhedrals, and a master's voice. I hold the deepest secrets of the king, or the greatest treasures of the dragon. What am I?