How can I get numbers back that i deleted out of my call log from iPhone?

You would have to restore your phone from a backup that contained those numbers. Of course, that would overwrite everything on your phone with the older data.

A far easier solution is to log into your account on your cellular carriers website (or app if they offer one) and review your detailed call history. Most carriers will show you at least the last six months.

I accidentally deleted all my contacts . How do I get them back

Your question has nothing to do with the subject of this thread. Start a new post with your question.