None. Same thing. There is also 'hoch', which is little archaic but used in some parts of Czech republic. All 3 mean the same thing
all masculine animate? unlike devce (i know where the accents should be) and holka which are different?
How can I identify better when it's an indefinitive article or a definitive one? Couldn't this sentence be understood as "Is it the boy?"?
As far as I understand Czech so far, you can't see the difference. It could be either. Czechs don't care about "a" or "the" it seems - that only shows from the context.
yes - in many sentences, this, that, the could all be just "ten/ta/to". You get it all from context.
Why "je to chlapec?" have correct answer "it is a boy"? The first sentence is a question!