The Noble of gas of helium (He) allows for the Goodyear Blimp (an airship) to rise. Helium (heliox) mixtures also allow for deep Scuba diving.
There is no way without hurting yourself because it will hurt
Why do I bruise without actually hurting myself
There's really no way to tell him without hurting him but just be completely honest he will move on in time
Lie saying that you have already invited to many people I don't think you can do that without hurting their feelings
Call loan company and explain your situation, see if they can offer you a delayed payment schedule, etc.
Inventors think of things like something that can capture a bird without hurting it. Then they create those things, like cameras. You can take a picture of a bird without hurting it.
Replacing diminished resources would allow them to benefit from rain forests without hurting the global environment.
Because it decomposes
its almost impossible to dump a guy without hurting their feelings you'll just have to tell him the truth and hope he doesnt get to upset.
you can make yourself pass out without hurting yourself by.... not breathing well, fainting, or maybe even taking a medication you didnt know what it was that may have expired
Tell a joke?