Answer:
What is given but kept by the giver?
Big as a biscuit, deep as a cup, but even a river canβt fill it up. What is it?
What is the freedom of birds and the pen of old men?
Used on a diamond and left on a board. It's great for a gymnast his grip to restore. What is it?
With pointed fangs it sits in wait. With piercing force it doles out fate, over bloodless victims proclaiming its might. Eternally joining in a single bite.
In your fire you hear me scream! Creaking and whining yet I am dead before you lay me in your hearth.