no one is the "most" normal
i guess you are referring to
however in the above sentence the word "most" is not used as a comparison, but refers to a majority. most normal people = most people that are normal. get it?
you asked me to define what is normal, obviously since we were speaking about behavior i took the definition of behavior normality from wiki. i do have my own opinion on normality. however opinions on normality are subjective as each person perceives what is "normal" and what is not "normal" in a different way. so i preferred to give you the scientific definition.
thus you are perceived as normal if you are not much different from an average joe.
you then asked what is the average (person).
again if i had posted my own opinion of the average person it would've been quite a post. so i considered it best to give you, yet again the scientific definition of "average"
now of course this definition is vague. to properly determine what is normal with a 0% error rate would mean to interview every person on the planet on every single subject possible to know their views. then you would find the average. i'll give you an example. say you interviewed every single person on this world. the theme would be...having children. a part of the interview subjects would answer they are totally against it, they hate children etc. a part would say they want to have as many children as possible. and a part will say they want to have 1-2 maybe 3 children. now those who answered 2-3 children are the average. they are neither 100% against, but not really fanatic about it either. then you can set the standard that a normal person will have 2-3 children. the further you go from this the less normal you are. normality doesn't refer to being mentally stable. it means being like most people are.
if you still did not understand , after my all mighty wall of text then i'm sorry i even bothered. i guess being amongst people that live in their parents basement hiding behind a screen that makes them think they are cool really does affect your mind