Do Friends with benefits really works in real life?

it can, yes. but people who know they get attached easily, or expect more,connect love and sex etc should avoid such things.

as long as both are on the same page, with the same mindset, i don't see the issue.

I think it could work if they both know what they want and if none of them gets attached easily or is more likely to fall in love. I mean maybe you never know but I know there are cold mudafuckas out there that only want sex...

It works but rules have be strict and also they need to give some space. Although one of them might get the feeling of attached.

no someone always gets attached

Set rules, parameters and such at the very beginning. Both parties must understand nothing else will come of it.

Yes and no, just like all other forms of human relationships.

depends on what you mean by "work"

for some ppl