Non-Tweezers

I have had this problem many times, I suppose I thought it was just a fluke, a misfit pair of tweezers. By the way, are tweezers called "a pair" or "a set" or something else? I mean, it's not like there are 2 of them, for now I will refer to them as a pair. Anyway, not all tweezers are alike, you have the slanted tip ones and square ones, personally I prefer the slanted tip ones. I have one pair of tweezers, "Trim" Brand, that know exactly how to do their job! Recently, my 4 year old daughter had a couple of splinters in her finger so my husband used my good tweezers to pull them out, went easy as pie (cause yeah, they're good like that). The next day I noticed I had a few wild eyebrow hairs that needed to go, but my tweezers were not in their usual spot, they were nowhere to be found. We have looked high and low, but no tweezers (such a funny little word). My dear husband can't remember where he put them (though not too shocking) and he feels bad about it. Well, I remembered I had a few more pairs lurking around, and the hunt was on,
I discovered I owned 6 pairs of these things. Why do I have so many? Where did they all come from? I kept an open mind and gave each pair a sincere try, now I can tell you why so many, because none of them work. I couldn't just sit around waiting for the tweezing tweezers to turn up, so my next trip to Walmart I got a new pair, low and behold, they don't tweeze. So, my husband's next trip to Walmart he bought me a new pair, they didn't tweeze either, and they were the same brand as the good ones, go figure. At that point my eyebrows were so red from trying to utilize all of the useless tweezers I didn't even notice the hairs anymore. Out of the 8 pairs (which includes my missing pair), so out of the 7 pairs I have now only 1 was able to manage to do the job. One pair was marked "Avon", two were marked "Trim" (1 slant and 1 square), three pairs did not have a name on them, and the last one was Avon's "Mark" brand (this one worked the best). What is going on, do they not test these gadgets? Maybe I am doing it wrong, surely not, it isn't rocket science or brain surgery. I mean, you grasp the hair and pull, what is so difficult about that?!? I inspected the tips of each pair; no apparent damage noted, though some of them when closed you can see light shine through where the tips meet (that can't be helpful). I am not sure why I kept them if they did not work, probably because I thought it would be a hassle to return them, or just embarrassing. I couldn't throw them away, I had just purchased them (at some point anyway). I guess I was hoping if I needed them bad enough I could wish them to work. So, why can these tweezers not tweeze? Isn't that like selling shampoo that doesn't clean? (When my oldest son was a toddler he called it "shampingpoo".) Or buying a drill that won't drill? A brush that can't brush? You get the point. If there are any awesome tweezers out there that actually work, someone please fill me in. I have heard the Tweezerman brand is pretty good.
*UPDATE*
I discovered something interesting about the "Mark" tweezers, (not sure if I can correctly describe this) besides using them by the normal tweezing tips, you can also use it on the sides. Because the tweezing ends are flat instead of rounded you can pluck from any angle. There is a caution here, because the edges are not smooth, if you are not careful they pinch and it hurts and leaves a bad red mark. When using the side, this pair works better than my old ones, yay! I will upload a picture soon (of the tweezers, not my eyebrows).