u/Becksalright

Which is correct?

Ken decided that he wouldn't wait for Barbie to become his "doll."

Ken decided that he wouldn't wait for Barbie to become his "doll".

I am studying grammar online and this sentence was correct on the site, but I don't think so:

It's you who don't know the facts of the case.

But, this makes sense:

You don't know the facts of the case.

Shouldn't the sentence be stated like this instead?

It's you who doesn't know the facts of the case.

This sentence doesn't make sense to me:

I want to come to your house to visit you.

Why wouldn't it be:

I want to go to your house to visit you.

The person isn''t coming, but going.

The nabe kids are torturing and abusing me. Please pray that they'll stop bothering me and getting into my yard and harassing me. I'm terrifed! Thank you.

That was Joseph and I whom you saw.

That was Joseph and me whom you saw.

Which is correct?

She is one those women who works hard.

She is one those women who work hard.

I hurt my back years ago in a car accident. My back has been getting worse over the years. Today I can barely walk and I'm scared. I don't know how I'll take care of myself if I can't walk. I'm just lying on the sofa all day.