Painter
You do not need to hire someone to remove your bedroom paint. It is pretty easy to remove the bedroom paint yourself. There are many do it yourself books if you choose to use one.
You can hire someone to do that or you can look into having a friend do it. It will be cheaper than doing it yourself.
You hire someone very talented.
a commission
If you are asking if it is legal to hire someone to have a threesome with, no. That is prostitution. If you are asking about something else, please clarify. What do you mean by tree some?
If you do it yourself you can buy basement waterproofing paint for 50 to 100 dollars. If you have to hire someone it is a lot more. It is just like paint you just roll it on. You should be able to do it yourself if you can paint.
Yes, you can hire someone to milk a cow.
Someone has to hire you to plow for them, and someone has to hire you as a harvester.
Patrons
You rent something out.You hire something in.
I need to repair my concrete sidewalk. Is this something I can do myself or do I need to hire someone?
Working for pay for someone else. A young lady might "hire out" as a maid, a governess or a housekeeper for pay in someone else's home. A man might "hire out" his wagon for hauling where someone would pay him for the use of his wagon. You could hire out (like renting) either your own labor or something you own for use by others.