'Someone' in the Bible

Now I have applied these things, brothers, to myself and Apollos for your sake, in order that in us you may learn not [to go] beyond what is written, lest someone be inflated with pride on behalf of one [person] against the other.

It is reported everywhere [that there] is sexual immorality among you, and sexual immorality of such a kind which [does] not [even exist] among the Gentiles, so that someone has the wife of [his] father.

Does anyone among you, [if he] has a matter against someone else, dare to go to court before the unrighteous, and not before the saints?

For if someone should see you who has knowledge reclining for a meal in an idol's temple, will not his conscience, [because it] is weak, be strengthened so that [he] eats the food sacrificed to idols?

But if someone says to you, "This is offered to idols," do not eat [it], for the sake of that one who informed [you] and the conscience.

But someone will say, "How are the dead raised? And with what sort of body do they come?"