This might sound confusing to some . maybe i am the only one who can relate . so here goes .

almost always when we give an exam , take any subject for an example . we have books , a really helpful thing called syllabus , at least we have a idea ( no matter how tiny it is ) that what kind of question will be asked , like they are never gonna ask about Shakespeare,s love life in geography ,s exam .
but story of my life i am stuck . there are countless books on exactly how to write an essay , how to make an outline etc . but we dont have a single idea what will be asked . or am i missing something ?. or do examiner expect us to have a knowledge of EVERYTHING . how can we prepare for it if we dont know what will be asked . it literally could be anything . from " write abc " to " what came first , a chicken or an egg " . or should i just take a few topic out of the air and start preparing . ( i have been told that i ask too many questions , at the moment i am standing in pitch black and dont know if there,s even a way out " )