questions - What is the difference between "how much gold this ring has?" and "how much gold do this ring has?"?

What is the difference between the two sentences:

1. How much gold this ring has?


2. How much gold does this ring has?

Another example:

1. How much water do you have?


2. How much water you have?

I have two questions.

How much something (do/does) something (have/has)?

When can I use do/does?

As you know this sentence:

How much contrast your image has?

Here we neither use do nor does.