What's the difference between 답변하다 and 대답하다? Thank you :)

What would be the most natural way to connect these clauses in Korean? "I just listened to that song, and I like it!" Thank you :)

Which is the most natural response to "Do you want to go to a café?" in Korean? 1. 아니요. 커피 안 마셔요 2. 안니요. 커피을 안 마셔요 3. 안니요. 커피 싫어요. 4. 안니요. 커피가 싫어요. Or is there a more natural way to say it? Thank you! :)

What's the difference between "뒤돌아서" and "돌아서"? Thank you :)

How do you say "company" in Korean? (As in "to keep someone company".) Also, what is the most natural way to ask "Do you want some company?/Do you want me to keep you company?" Thank you :)

What's the difference between 어디론가 and 어딘가? Do they both mean "somewhere?" Thank you :)

I read a post which said "Une réalité dont on parle de plus en plus". Shouldn't the "de" be removed? Doesn't the "dont" replace the "de" after "parle"? Or is it just optional to include it? Or is the "dont" removing something else in the sentence?

Which tense do I use? For something that I am working on (like learning a language or building a computer), which I'm not doing this exact second but am currently working on, would I use the present or "être en train de"? Or is there another way to say it? :)

How do you say "Blog" in Korean? And how do you say types of blogs? (e.g. craft blog, travel blog)