Probably it's a traffic thing according to how busy some streets and crossroads are.
But it pisses me off too.
heyy im not medical professional, but it doesn't really know, painkiller is being sent to pretty much every part of your body, but works only on inflamated one, so nerves will pick it up and numb pain.
There is probably "smarter" answer but oh well
The whole "not like other girls" , like pretty much everyone was one at some point ( congrats if you weren't) but we were like 12 or 13. I see young adult women (17 and up) doing that.... like no one cares if you don't do make up, no one cares how many people you were with ( they usually shame both sides of the spectrum), etc.
English. Like, I know how to speak it but when you sit to think about it there's so many things about this language that doesn't make sense... But I guess is the same in spanish (my native language) and any other language.
GRASS.
Why in the everliving world does anyone have grass in their yards? Cows and horses and goats aren't using it to graze. It requires a bunch of water. Everyone also cuts their grass super short, so it's not even nice, long flowing grass you can frolic in since the reality is that attracts ticks--but that means it's just stub grass. And to keep it stub grass you have to maintain it with noisy devices. You can't even roll around in the grass like a kid without the stubs poking and stabbing you everywhere and making you itchy. Why do people have it? Why? I don't get it.
Cover the yard in chips and plant a bunch of green bushes that bees will like or something. Grass has uses in the world but it does not belong in people's yards. 
I know this one!
Lawns used to be a status symbol! Beginning as far back as the 16th century in France and England, the very wealthy would show off how wealthy they were by maintaining huge areas of their land covered by useless grass that wasn't being used for grazing, nor were the patches covered with lawn being used for food production or other such 'normal person' concerns. And it cost a lot of time, money, and manpower to maintain those useless stretches of grass, so that was another way to flaunt wealth.
And of course everyone started trying to emulate the rich folks...
I think the whole "I'm not like other girls" thing is to help the individual find something that is unique about themselves. They're trying to get attention because no one really bothered to care about them before. I went through this phase when I about 8-10. And honestly just wanted people to treat me like I'm special- Not some random girl you can find anywhere. They want to be considered "cool and popular"- so why not just let them find out on their own that it's not going to work.
But it can be different for everyone. 
Some of the worst norms start out this way, don't they >_________>.
Thank you though! I guess the question is, why has it stuck for so long, especially when most wouldn't know of the history behind grass... 
Yes. I never went through this phase when I was a kid, but I only think that's owed to my odd circumstances. Had I been exposed to society earlier, I likely would have been a "Not like other girls" kid, too. I still had a version of it, which was more broad. "I'm not like other people". 
From what I've observed, the behavior is one that's guaranteed to happen because of how much 1) society hates teenagers, and especially girls. Literally everything girls do is "annoying" or "girl drama" or "childish", but when a boy does it, it can be charming or funny (This is not to say boys "have it easier". Both genders have it insanely hard in very different ways), and then 2) how much society values "being unique". They want special stand-out people. They want everyone to be creative enough to still be within their confining box but at the border between acceptable and way-too-out-there. So society tells everyone, "Be unique, because being normal is boring!", then mocks girls for trying.
In all seriousness. Kansas and Arkansas are named after two Native American words from two different groups. American dialect from each area may have also altered the pronunciation of each over time.
another thing that confuses me:
those cart things they use at grocery stores to bring the carts back into the store like
how the heck
magics???
Magnets??/?
i think it's magnets but only because i saw a store employee get their keys stuck on one of the carts or something while it was on. plus you usually see them charging when not in use
Oooh, are we allowed to answer these? I'll bite:
Schrodinger's cat is just a thought experiment: a cat is left in a box with a device that may or may not kill it. And until you open the box, you have no way of knowing whether the cat is alive or dead. That's it. At it's core, the idea is literally that simple.
Of course, as with all science, they take the analogy a step further in order to describe an abstract phenomenon: until you open the box, for all intents and purposes the cat exists in both states at once-- alive AND dead-- because both are equally likely.
And this is serves as an introduction to the idea of particles whose states can't be known until they are observed, and that the act of observation ('opening the box') automatically 'chooses' a state to observe.
If you mean stuff like x+x^2, there are plenty of ways to deal with those...mostly just involving breaking up x^2 into the smaller exponents that it must contain. As an adult, I don't think it has to 'stick'; you just have to know enough to quickly re-teach yourself how to use them again when the opportunity arises.
If you mean binary code, though...your guess is as good as mine. ^^;
I've never heard of this experiment, but I think it's meant to be a classic example of psychosomatics (I think there's a better word, but I don't remember what it is...basically, how your mind can influence your body's immune response and perception of pain).
Just like people can have real auto-immune responses brought on by stress, I think it's possible that the anticipation of intense pain accompanied by a real stimulus (even if it's not the "right" one) can provoke a physical response. Maybe not the actual cell death that results from a true burn (unless that rod was REALLY cold), but they could easily have swelling and redness in the area of the "burn".
What makes me skeptical about this, though, is the threatening nature of the experiment (and the fact that participants DID come away with some form of injury)...I'm not sure that would be allowed today. ^^; Maybe 50 years ago or earlier, when regulations were looser (or nonexistent)...
Anyway, here's some things that confuse me. If anyone wants to pop in and try to explain any of 'em, I welcome it:
Cell differentiation
Basically, how does an embryo form and grow? Like, how...do the cells know what to do? How do they know where to go?? How do they become the correct shape???
Mind you, I am a biochemistry student, so I am supposed to know how to answer this. And I guess I do...but only up to a certain point.
Like, I know DNA->mRNA->Protein...but I don't get how that works on the macroscopic scale. Like, between a certain protein being made and cells assembling themselves into a beating heart, what the f*ck is going on in there?? I just don't get it...
The Discovery of Mathematics
I can deal with math that exists: it may make my brain hurt, but at least everything can be explained...it has to; that's kind of the point. ^^;
Math that doesn't exist yet, though...that, I can't comprehend.
It just never ceases to amaze me that math is just...not real. It's not; it's wholly and completely a human construct. So all these rules and equations that we're exposed to throughout school, from the streamlined and elegant to the nasty and horrible: someone had to invent them.
And someone had to invent whatever they were based on...at some point, someone had to think of numbers as more than a mnemonic device to help you keep track of how many things you have, and as an entity of their own that could be manipulated in the abstract...what a place the inside of their head must have been. '_' I don't think I could do that.
Consciousness
Once I heard that butterflies (or some kind of bug that goes through metamorphosis) can retain memories from before, when they were caterpillars. As in, their whole body liquefies and is rebuilt from the ground up, and somehow, someway, their conscious experiences survive the process.
That was a pretty mind-blowing day for me. Like, Big Bang level mind explosion...
I...just don't even know how to deal with that, if it's true. I feel like maybe there are three possible explanations:
1) The bugs don't completely liquefy; there's some brain remnant floating in the goop that we've just overlooked
2) CONSCIOUSNESS IS NOT A TRUE GESTALT SITUATION; IF THE PARTS ARE THERE, WE CAN BRING IT BACK FROM DEATH AND BEYOND...MOTHER NATURE ALREADY KNOWS HOW; WE JUST HAVE TO FIGURE IT OUT
3) Bugs have souls?? Idk
Money and inflation. Like.. I don't get it, we assign this arbitrary value to a dollar, and somehow it's decided and agreed upon that physically making too much of that currency makes it worth less?? Why??? Why can we not just keep it at the same value? I've received countless explanations and it still doesn't make sense to me.
A dollar is a dollar! Why dollar go less when still same on the paper??? Who invented this concept???? JUST KEEP IT THE SAME!
Languages with the verb in the end of the sentence. 
Yes, German and Japanese, I am talking about you two, crazy handsome bastards.
Lol I speak French and I'll try to explain briefly-
Let's use the sentence 'I'm walking to school' in English
So the walk has three phases. Past present and Future.
.walked
.walk
.walking
In French that'll be
.Marché
.Marche
.Marche
I know in German it's the same- meaning the words 'walk' and 'walking' are the same.
(Gehen)
The only way to know which tense you are talking in- is to use different words to define the verb.
So in other words- you put the verb last.
Sorry if this makes no sense. I'm bad at explaining
unfortunately French doesn't cut it, it's not in the same league 