I'm a bit cash-retarded, but what is the best play in these spots.

Hand 1

PokerStars No-Limit Hold'em, $0.25 BB (9 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

UTG+1 ($7.95)
MP1 ($21.75)
MP2 ($25)
MP3 ($36.70)
CO ($25)
Button ($17.55)
SB ($24.75)
BB ($25)
Hero (UTG) ($24.15)

Preflop: Hero is UTG with A, K
Hero bets $0.80, 4 folds, CO calls $0.80, 3 folds

Flop: ($1.95) Q, J, 6 (2 players)
Hero checks, CO bets $1.50, Hero calls $1.50

Turn: ($4.95) 5 (2 players)
Hero checks, CO bets $4, Hero folds

Total pot: $4.95 | Rake: $0.20


Hand 2

PokerStars No-Limit Hold'em, $0.25 BB (9 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

Button ($25)
SB ($7.50)
BB ($34.60)
UTG ($20.15)
UTG+1 ($9.55)
MP1 ($14.95)
MP2 ($25.05)
MP3 ($37.45)
Hero (CO) ($24)

Preflop: Hero is CO with 3, 3
5 folds, Hero bets $0.80, 2 folds, BB calls $0.55

Flop: ($1.70) 5, K, 6 (2 players)
BB checks, Hero bets $1, BB calls $1

Turn: ($3.70) 5 (2 players)
BB checks, Hero checks

River: ($3.70) Q (2 players)
BB bets $2.50, Hero folds

Total pot: $3.70 | Rake: $0.15


Hand 3

It seems like flush/straight draws are in his hand range here. What the heck do these min-raises mean and should I consider just calling here?

PokerStars No-Limit Hold'em, $0.25 BB (7 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

BB ($34.60)
Hero (UTG) ($30.35)
MP1 ($16.70)
MP2 ($10.90)
CO ($10.25)
Button ($17.75)
SB ($5)

Preflop: Hero is UTG with A, K
Hero bets $0.90, MP1 calls $0.90, 5 folds

Flop: ($2.15) 5, A, 2 (2 players)
Hero bets $1.30, MP1 raises to $2.60, Hero raises to $6.50, 1 fold

Total pot: $7.35 | Rake: $0.35