1) I like a check behind on that river. The flushdraw isnt calling a bet anyway. The straight draw got there. The J got there. All you beat is something like KQ that floated.

2) I think its quite close. QQ is a snap call. JJ is probably still a call. TT is probably just about a fold but it depends on how donkish you think he is. I dont think its an easy fold against this guy.