walls are terrain that acts like blocking terrain but is not actually blocking terrain.

so general question is, special powers that are effected being adj to blocking terrain, are they also granted when the fig is next to a wall?

Yes.

Just keep in mind that the wording matters. Typically, all walls are blocking terrain, but not all blocking terrain are walls. If an effect looks for squares of blocking terrain, then walls would not qualify.

i agree wording matter,

thus the confusion of walls act like blocking terrain instead of walls are blocking terrain.

where is it clarified that walls "are" blocking terrain.

(not arguing, just want to know)

From page 13 of the rulebook:

yeah, that is what we kept reading, that they "behave" like blocking terrain, but with all the specifc wording things out there could not find a place that said they "were" blocking terrain.

just specifing where the confustion comes from, thank you for an offical answer.

From the Player's Guide:

Walls are blocking terrain for all game purposes except that (a) they are not considered a square of blocking terrain and (b) they are not included in an area of blocking terrain.

That REALLY needs to go in the 2014 rulebook.