Did he flop the flush?

Do I need to be folding in these spots with no chance to improve my hand?

HAND 1: Villain is 42/12/2.8

Full Tilt Poker
No Limit Holdem Ring game
Blinds: $0.05/$0.10
6 players
Converter

Stack sizes:
UTG: $13.75
UTG+1: $10.25
Hero: $9.80
Button: $9.65
SB: $7.30
BB: $3.35

Pre-flop: (6 players) Hero is CO with Q :diamond: Q :heart:
UTG folds, UTG+1 calls, Hero raises to $0.5, Button calls, 3 folds.

Flop: 2 :spade: 6 :spade: 9 :spade: ($1.25, 2 players)
Hero bets $1.25, Button raises to $4.1, Hero raises all-in $9.3, Button calls all-in $5.05.
Uncalled bets: $0.15 returned to Hero.

Turn: 4 :spade: ($19.55, 0 player + 2 all-in - Main pot: $19.55)


River: 9 :heart: ($19.55, 0 player + 2 all-in - Main pot: $19.55)


Results:
Final pot: $19.55


HAND 2: No significant data on villain. PF isn't standard but felt like feeling the table out.

Full Tilt Poker
No Limit Holdem Ring game
Blinds: $0.05/$0.10
6 players
Converter

Stack sizes:
UTG: $6.55
UTG+1: $10.50
Hero: $12.40
Button: $9.20
SB: $9.90
BB: $10.80

Pre-flop: (6 players) Hero is CO with Q :diamond: T :diamond:
UTG folds, UTG+1 calls, Hero raises to $0.5, 3 folds, UTG+1 calls.

Flop: Q :club: T :club: 6 :club: ($1.15, 2 players)
UTG+1 bets $0.8, Hero raises to $3.5, UTG+1 raises all-in $10, Hero calls $6.5 (pot was $14.65).

Turn: K :diamond: ($21.15, 1 player + 1 all-in - Main pot: $21.15)


River: J :club: ($21.15, 1 player + 1 all-in - Main pot: $21.15)


Results:
Final pot: $21.15


HAND 3: Just checking if this line looks standard?

Full Tilt Poker
No Limit Holdem Ring game
Blinds: $0.05/$0.10
6 players
Converter

Stack sizes:
UTG: $8.60
UTG+1: $15.25
CO: $12.55
Hero: $8.60
SB: $9.85
BB: $3.60

Pre-flop: (6 players) Hero is Button with A :diamond: 8 :heart:
UTG folds, UTG+1 calls, CO folds, Hero calls $0.05 (pot was $0.25), BB checks.

Flop: 5 :diamond: 5 :club: 8 :club: ($0.35, 4 players)
Hero bets $0.3, BB folds, UTG+1 calls.

Turn: 2 :spade: ($0.95, 3 players)
Hero bets $0.9, UTG+1 calls.

River: 6 :heart: ($2.75, 3 players)
Hero checks, UTG+1 bets $1.4, Hero calls $1.4 (pot was $4.15).

Results:
Final pot: $5.55