Answer:
Long and slinky like a trout, never sings till it's guts come out.
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 can be swallowed, But can also swallow you?
I can be used to type and point you see. But don't forget, you can count on me. What am I?
What comes once in a minute, twice in a moment, but never in a thousand years?
If it’s information you seek, come and see me. If it’s pairs of letters you need, I have consecutively three. What am I?