Which answer in this list is the correct answer to this question? (2017)
answer - <a href="https://math.stackexchange.com/a/3437700/725808" rel="nofollow">https://math.stackexchange.com/a/3437700/725808</a><p>The question displays a lack of understanding of language, especially the relation between a word and its meaning. More specifically, the relation between a noun and its pronoun.<p>Suppose Question 1 was:<p>> "What day is it today?"<p>And suppose Question 2 was:<p>> "Which answer in this list is the correct answer to this question?
> Friday, Saturday, Sunday"<p>If someone asks, <i>'What question is the pronoun "this" in Question 2 referring to?'</i><p>Then you can reply - <i>'Question 1'</i><p>And then they can proceed to answer Question 2 as <i>'Saturday'</i><p>Suppose I just ask you out of the blue : <i>'what's his height?'</i><p>You will immediately respond : <i>'who are you talking about?'</i><p>A pronoun must come AFTER a noun has been established. If it comes before, the speaker must clarify the noun after.<p>In other words, you must be able to do a Ctrl-H Find & Replace in the original sentence, and change "this" to whatever it's referring to, and the new sentence should still make sense. That is the point of pronouns.<p>If I ask <i>'what is the weather in this city?'</i><p>Does that question make sense without mentioning the city's name either before or after? It might make sense grammatically, but practically, it is not answerable.<p>If you now come back and say - Just replace the pronoun "this" with the text of the question, then it becomes :<p>"Which answer in this list is the correct answer to "Which answer in this list is the correct answer to this question" question?<p>Is the question answerable now ? Still NO.
Because there is still one unresolved "this".
Ad-infinitum.<p>So, to answer your question:<p>> 'which question ?'<p>The question, as is, is not answerable. Because it does not make sense until you resolve what 'this' refers to. Until then, it is just a bunch of words without a corresponding meaning. It's not a paradox or a contradiction.  
Barber's 'paradox', 'This sentence is false' etc. all are basically just a poor understanding of language/pronouns.<p>You might as well ask :<p>> 'Which answer in this list is the correct answer to oogabooga question?'