I played 83 hands at 15/9/1.6 . In this hand villain had played 21/9/0.67 over the 88 hands.
PokerStars No-Limit Hold'em, $0.05 BB (8 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

UTG ($5.76)
UTG+1 ($6.09)
MP1 ($5.07)
MP2 ($3.77)
CO ($8.26)
Hero (Button) ($6.75)
SB ($10.28)
BB ($5.79)

Preflop: Hero is Button with K, A
4 folds, CO raises to $0.20, Hero calls $0.20, 1 fold, BB calls $0.15

Flop: ($0.62) Q, 5, 9 (3 players)
BB checks, CO checks, Hero bets $0.40, 1 fold, CO calls $0.40

Turn: ($1.42) Q (2 players)
CO checks, Hero checks

River: ($1.42) K (2 players)
CO bets $0.95, Hero ???


In the second hand villain was 9/3/0.5
PokerStars No-Limit Hold'em, $0.05 BB (8 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

CO ($5.42)
Button ($5.89)
SB ($6.11)
BB ($8.92)
UTG ($3.72)
UTG+1 ($9.58)
Hero (MP1) ($5.72)
MP2 ($5)

Preflop: Hero is MP1 with A, K
2 folds, Hero raises to $0.25, 2 folds, Button calls $0.25, 2 folds

Flop: ($0.62) K, A, 10 (2 players)
Hero bets $0.50, Button calls $0.50

Turn: ($1.62) J (2 players)
Hero bets $0.25, Button calls $0.25

River: ($2.12) 5 (2 players)
Hero bets $0.25, Button raises to $0.75, Hero ???

the following range comes out at 17% of hands to allow for him being in the cutoff and opening his range up.

Code:
 103  games     0.005 secs    20,600  games/sec

Board: Ks Ah Th Jc 5s
Dead:  

	equity 	win 	tie 	      pots won 	pots tied	
Hand 0: 	54.369%  	52.43% 	01.94% 	            54 	        2.00   { AsKd }
Hand 1: 	45.631%  	43.69% 	01.94% 	            45 	        2.00   { 22+, AJs+, KJs+, QJs, AJo+, KJo+, QJo }
Firstly is this a valid range to use ? Should I be thinking he probably has the Q which was why i slowed down. Then again should I have bet the flop a lot stronger.On the other hand when the raise came in on the river I was thinking he either has theQ or flush.
In hindsight should it have been a check fold once the J came on the turn .