I can't seem to find errors here, are there any?

Are there any errors in the below sentences please? This is exactly the way I'd say them, so I don't seem to think there is anything structurally wrong or unnatural about them. Would you let me know what you think please?

- Who else worked there when I worked there?/while I was working here?


- If the first 10 games are any indication, they'll probably win the championship.//

- I don't mind seeing her as much in the morning as I do at night.

- There is nothing here for you.

- The fans are happy as (while) their team is up by 10.

- Anytime you start to play well, you feel better about yourself.

- Give the keys to no one other than the police.

Thank you