Answer:
First I may be your servant's name; then your desires I may proclaim; And when your mortal life is over hold all your wealth within my power.
What force and strength cannot get through, I with my unique teeth can do. What am I?
A young man wants to have me but when he has me he no longer wants me. Blade in hand he attacks me and does his best to remove me. Yet he knows that it is all in vain.
I need to be taken before you can have me. What am I?
I am free the first time and second time but the third time is going to cost you money.
What never gets any wetter no matter how hard it rains?