Answer:
A serpent swam in a silver urn, A golden bird did in its mouth abide, The serpent drank the water, this in turn, Killed the serpent. Then the gold bird died.
We are five little objects of an everyday sort. You will find us all in a tennis court.
In the forest, this blends in just right, but every December it is covered with lights. What is it?
Bold are the first; true are the second; playful are the third; clever are the fourth; forceful are the fifth.
What can be seen but never found that only hides in the unwound?
People take me on walks and I run and have fun. What am I?