KK iso pot, turn fold?

Turn raises indeed tend to be a bit too value heavy. Now BB got a decent price to call with a wide range and he could have all sorts of straights, 2pair, sets and so on. And your villain seems to be a bit tight. It is ok to fold here.

Yes, but i felt he had strong draw, example Jd10d, 10d9d. But probably he raise post flop if he had 12 outs.

This is correct fold I takes lot of cohunas to raise in this spot. I think I would check turn back and see what river brings.

Yes, maybe playable way check-behind, but i check behind turn and river blank lap, he often push or pot bet dead fd. What do you think, which is better move turn check behind or bet/fold?

There is no right move for every time in same spot at least for me. When I play against unknown I am very curious it cost money but you gain info and if you know how to use this info latter than it is worth it at least in my book. So in that case I would call pot sized bet on river.

And i slow the turn every time when drowheavy board the villain often bet the turn or river, because he know i haven't got three of kind or better. I prefer bet the turn almost always.

You have to bet the turn, you cannot afford to give a free card. Villain can hold a lot of draws, you have to protect your overpair.

After the raise, you have to fold. Villain is BB, he got good odds preflop, and in spite of his stats, he really can hold a lot of hands. He might have just a worse overpair. And you are right: He will not hold a set otf. Ott hi might have hit a set. Or a 2P. Or a straight. With or without a flush draw. If he is behind with a pair and a flush draw and a gutshot, you are toast as well. Fold.

Yes, he was the BB but i don't think so he got a good odds pre flop. Which laps what he call? 22-JJ and AQ. Any suited connectors he hadn't a good odds pre flop. And lot of times he had a flush i have got higher flush or nuts flush. And you want to say, my pre flop raise is too small?

1/2 bet flop there is no reason for this huge bet.Or check this board dont hit my range enyway.

Reasonable fold for me as well

I think that we should be betting on turn. There are still worse hands and draws that want to call.
After the raise, this is a fold.