All of the hands you mention seem probable to me apart from
![The Ace of Spades [As]](https://pofex.com/images/smilies/As.gif)
[Ks]. I don't think he's on a draw.
His less-than-the-pot on the flop bet might well have been an inexpensive attempt to find out whether you've got a
![The Queen of Diamonds [Qd]](https://pofex.com/images/smilies/Qd.gif)
, and is practically automatic for the raiser as he would have had to have folded if he checked and you bet. To me, his shift from leading to check-raising says 'the
![The Jack of Spades [Js]](https://pofex.com/images/smilies/Js.gif)
helped me'.
On the other hand, he might have an overpair and be trying to keep you in the pot on the flop, as there aren't many draws. Still, I'd personally bet the entire size of the pot with
![The King of Spades [Ks]](https://pofex.com/images/smilies/Ks.gif)
[Kh], as I'd hate to see an
![The Ace of Diamonds [Ad]](https://pofex.com/images/smilies/Ad.gif)
.
Yet again he may have
![The Ace of Spades [As]](https://pofex.com/images/smilies/As.gif)
[Ad] and be slowplaying it for value and is aggressively protecting it from a flush on the turn. With the
![The Ace of Spades [As]](https://pofex.com/images/smilies/As.gif)
he has the added confidence of the backdoor nut flush, too.
I'd reckon on
![The Jack of Diamonds [Jd]](https://pofex.com/images/smilies/Jd.gif)
[Jh] first, with
![The Ace of Spades [As]](https://pofex.com/images/smilies/As.gif)
[Ad] secondly.
I'd probably be calling. If he does have a set of jacks and the fliush completes, there is a very remote chance you can get him to lay his set down?
And anyway, I've won so many finger-biting all-ins against my sets on balance that I almost never lay them down, especially as
![The Ace of Spades [As]](https://pofex.com/images/smilies/As.gif)
[Ad] is a real possibility.