QualihomePlastic Self Drilling Drywall Anchors with Screws Kit, 100 Pieces

Any chance i could use these for a tv wall mount? no studs available.

I want to hang a 6 ft dry erase board that has two mounting brackets that weighs about 30-50lbs. What is this items weight rating?

I just want to hang curtains without the screw pulling out of the wall. Will this work with the ordinary curtain rod bracket?

Is the end of the anchor suppose to open up like a mouth after you drill into it? Because its not happening for me.