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.
Double my number, I'm less than a score. Half of my number is less than four. Add one to my double when bakers are near. Days of the week are still greater, I fear.
A little pool with two layers of wall around it. One white and soft and the other dark and hard. Amidst a light brown grassy lawn with an outline of a green grass.
What is bought by the yard by is worn by the foot?
Salty water everywhere but not sea in sight.
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?