A 88a extension: As mentioned above, no. Note that a bardic knowledge check is an Intelligence check, so an overall bonus to Intelligence checks (or to any ability check) would benefit a bardic knowledge check too. But not bonuses to Knowledge checks, which are specific skills.
Q 90
I am wondering how grappling and Reflex saving throws interact.
A) A character who is grappling lose Dexterity (and Dodge) bonuses to AC against those who aren't grappling. Does he receives any penalty to Reflex saves from an external area attack?
B) A character who is pinned is "immobile but not helpless". That would mean a monk would lose his special AC bonus too, but does it also affects Reflex saves somewhat?