Lightning-Fast Doubt Resolution

Some questions and clues are not clear

How is D correct? What if language is not a factor at all, would't that mean other factors other than language might be at play, and not in conjunction with language?

how will a doctor or lawyer know any better than the CEO or supervisor? Doctor can still validate "sick leave" but lawyer does not make sense to me? how is C now the answer??

how did 2x-y=8 and 2x-y=-8 lines are drawn?
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i know this is wrong, but i dont know where im getting it wrong, please help.

initial SP of value of A nad B is X, and she makes 20%more on A , so CP of A is 20% less than X? which is 4X/5, and earn 10 % less on B so CP of B is 10 % more which is 11X/10? then she increased the prize and now she gets 10% more profit on B which is 10 % more than CP =12/10 thats equal to the new prize of A profit A made is ((12X/5)-(4X/5))/(4x/5) =1/2 so its 50%.

I'm getting the value of K as 6 and -3/2 , im confused which one to use. was a tita question so no option to choose too. help

Whats wrong in this

my logic was the all except 1 are composite numbers. why is that wrong? can you please tell? thanks .........................................................................................................

since the newspaper is described as "This libertarian weekly", it doesnt mean it is neutral right? Libertarian is different philosophy than a neutral stance, hence there is no evidence available for support of option C?
When the author says it pretends to be above the fray - means that it pretends to be better than the non sense of the others (because Economist is with common sense )

This teacher should be changed. Never explains briefly, feels like he acts to explain and suddenly jumps to the answer.