First of all, thanks to bigspenda73 and swiggidy for giving very useful comments in my first post.

This time I have 2 similar hands, I have seen both villains calling down flushes/straight but I do not know whether they like to bluff or not:

Hand 1:

PokerStars No-Limit Hold'em, $0.10 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

Hero ($9.90)
BB ($8.05)
UTG ($11.75)
MP ($9.90)
CO ($6)
Button ($10)

Preflop: Hero is SB with 5, 5.
4 folds, Hero raises to $0.4, BB calls $0.30.

Flop: ($0.80) 5, 2, Q (2 players)
Hero bets $0.6, BB calls $0.60.

Turn: ($2) 9 (2 players)
Hero bets $1.8, BB calls $1.80.

River: ($5.60) 6 (2 players)
Hero ?

Hand 2:

PokerStars No-Limit Hold'em, $0.10 BB (5 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

UTG ($11.65)
MP ($32.80)
Button ($12.10)
Hero ($12.25)
BB ($6.95)

Preflop: Hero is SB with 9, 9.
3 folds, Hero raises to $0.4, BB calls $0.30.

Flop: ($0.80) 2, 9, 8 (2 players)
Hero bets $0.6, BB calls $0.60.

Turn: ($2) 3 (2 players)
Hero bets $1.5, BB calls $1.50.

River: ($5) 4 (2 players)
Hero ?


1. Did I bet big enough to kill the odds of the chasers? Should I overbet/push turn instead of betting 3/4 pot?

2. I've bet PFR, flop and turn to built the pot. Which is action is more correct:
Value bet the river (1/3 - 1/2 pot) or check it to allow villain to bluff?