Are these sentences correct in grammatical?

I tried to write some sentences.
Each of them has wh-clause as subject.

Q: I don't convince that these are correct in grammar and meaning. If there are any awkward expressions, please advise me which they are and how to correct.
thanks for listening to my problems

1) Whoever knows him well respects him.
2) Whomever you will love is not a matter for me.
3) Whichever he chose will not pass through the custom.
4) Whatever you want will come true.
5) Whosever car is parked here will be towed away.