What's the difference between words 'taste' and 'flavour'?

Как сказать по-английски "можно" и "нельзя"?

What's the difference between the words "satisfied" and "pleased" These words have the same translation in Russian, so I want to know the difference.

What's difference between words 'kind' and 'type'?

What's the difference between the words 'within' , 'inside' and just 'in'?

What's the difference between the words kill, murder and slay?

Can I give you an/some advice? What do I have to use?

How did he die? Is it correct question?

French or German? I have a problem with the choosing of my second foreign language. These two languages are similar for me. I mean that I don't need them for work, study or smth. I wanna learn them just because I like it. Of course I want to know both of them one fine day, but what should I study first? Tell me about advantages and disadvantages, if you are able to. I'm from Russia, if it matters. Also I want to ask you for some helpful resources where I can study the language you recommend me.