1. In the case of Twitter/Facebook, how much USD You, as a hunter, would like to receive per single Like/Share/Post?
If You bring any examples of how much You got paid for bounty work, it could be helpful as well.
When it comes to bounty programs, you cannot dictate for the bounty manager so there is no need to assume how much you would make or earn for participating
2. What is the reasonable price for the blog post/article with a review of the project?
Every bounty projects allocate stakes which is viewabele to the public and you need to always read through instructions always. , for some bounties you earn 10$ for articles, while for some projects you earn 100$, it depends always
3. As a translator how much You would like to get paid per Whitepaper/Lightpaper/ICO page translations?
Just get to work , no body knows which project will worth it or survive this bearish moment
be smart.