Have: Como utilizar (avançado)

Hello friends, I've seen some points that I consider difficult, because they don't seem to be so used or it's a difficult part of English more used in formal contexts!!

So, I'd like you to help me with it:

What's the real meaning and in what context this grammar point works?

1- Have the carrier deliver the package next work
2- Have her come over for dinner tonight
3- I'll get her to eat the food on her plate
4- My boss will have me finish the report today
5- The teacher will have me turn in my homework

They are looking totally formal, but I'm not sure, I'd like some explanation about it, if you can, for sure!!!

Thanks in advance!!!!