Hi, I am sorry if this is too basic but I have really hard navigating cocos website, and i cant log in there to ask questions, so I hoped that you can help me.

You see, I don’t like unity engine for small games because it takes too much size, logo that is not customizeable on free version (it’s their right of course, I just dont like it), and games are somehow laggy.

I would like to use cocos engine but really have hard time unity it. So here is my list of questions:

1. I want to make game in cocos engine but I saw many extensions so I am not sure which is right, 2d game, can make android, ios, windows, windows phone, and if possible osx and linux to be targeted, while using c++. I am not sure, but is best choice cocos2d-x?
2. Am I using actually cocos2d-x engine or I am using eclipse? Because I am really not sure, I thought cocos-2dx is standalone aplication or am I wrong? 
3. I am not sure, but how different is c++ used in cocos2d-x than “normal”? Because I remember using unity javascript and it is different than actual java script. I know this you know basic c++, with #include <iostream> cout « cin» and stuff like that. If it is really different what is right book to learn it, I don’t have good connection so watching videos is not really possible.
4. When I want to instal cocos 2dx do I need to download all files or just “cocos 2dx 3.xx”?, do I need sdkbox and cocos creator?
5. What is cocos creator? I really don’t have slithest idea.

Thank you very much :D