これ – This (close to the speaker)
それ – That (close to your counterpart)
あれ – That (Over There, away from both)
Used with は
これ は neko です = This is a cat
それ は neko です = That is a cat
あれ は neko です = That (over there) is a cat
だれ = who
Jo は だれ です か = Who is Jo?
With の: この + noun = this car, that car, that car (over there)
(describing a noun)
この neko は kawaii です = This cat is cute
だれの = whose (これはだれのくるまですか = whose car is this ?) それは私のです = that is mine (you don’t repeat the noun when it’s clear what you’re referring to)
Also combine with negative (じゃありません) or past positive (でした) or past negative (じゃありませんでした), see here.
あの neko は kawaii じゃありません = That cat (over there) is not cute
Related:
ここ = here (near me)
そこ = there (near you)
あそこ = over there
どこ = where