Undecided questions
That is the difference between 매 and 마다 and other questions)))

1.That is the difference between 매 and 마다?I know a sentence order will be difference but what is the semantic difference or difference of meaning?
2. About particles: 여러 꽂(Х) 중에. We don't use particles after noun before 중에, right?
3 맥주(Х) 세 병(을) 주세요. We can't put particles after noun before countable words. right? Only with countable words we use them?
Thank you very much))