5 question with 2 alternate ways of saying them???

Could you please help me with this? Which would you choose?

- What color eyes exist?/WHat eye color exists?

- Will be able to stay friends with each other/one another.

The screen is split in half one side showing a close up the other a ____ (whats the opposite of close up?)

- She didn't condone/wasn't for violence and torture at the beginning but as the season progressed she started to share the ethics of her co workers.

- I don't mind it not working/that it doesn't work.

- Between the time I called and called back, I went out for a bite to eat/between when I called and called back....
Between the time I called and called back a second time, an hour past by.

Can you say this in a form of a question?

- The situation (between her employer and her) turned violent. (Is this OKAY?) and is the following question suitable?)
- How violent did the situation turn? (is this how you'd say it?)

Thank you