1. UTG is 20/16/7, but I have no reads. Comments on all streets appreciated.

Full Tilt Poker - No Limit Holdem Ring game - Blinds: $3/$6 - 5 players - Converter

Stack sizes:
UTG: $591
CO: $225.20
Button: $609
SB: $502.40
Hero: $633

Pre-flop: (5 players) Hero is BB with J J
UTG raises to $21, CO folds, Button calls, SB folds, Hero raises to $90, UTG calls, Button calls.

Flop: 3 4 5 ($273, 3 players)
Hero bets $189, UTG calls, Button folds.

Turn: 5 ($651, 2 players)
Hero...

2. Villain is complete unknown, which with datamining is a pretty rare event. It usually = fish, but who knows. Should I have 3-bet the flop? Can I fold a set in an unraised pot?

Full Tilt Poker - No Limit Holdem Ring game - Blinds: $3/$6 - 6 players - Converter

Stack sizes:
UTG: $423.40
UTG+1: $532.65
CO: $386.50
Button: $468
Hero: $594
BB: $612.75

Pre-flop: (6 players) Hero is SB with 4 4
UTG folds, UTG+1 calls, 2 folds, Hero calls, BB checks.

Flop: 4 9 6 ($18, 3 players)
Hero bets $15, BB folds, UTG+1 raises to $30, Hero calls.

Turn: 8 ($78, 2 players)
Hero checks, UTG+1 bets $60, Hero raises to $198, UTG+1 raises all-in $496.65, Hero...

3. And a fun extraction hand. 3-bettor is a regular that I have a fair amount of history with. He's 22/16/3 over a lot of hands. No reason to think he'd c-bet this flop 4-way without an overpair. What's your plan?

Full Tilt Poker - No Limit Holdem Ring game - Blinds: $3/$6 - 6 players - Converter

Stack sizes:
UTG: $555.75
Hero: $1168.65
CO: $599.50
Button: $600
SB: $597.75
BB: $300

Pre-flop: (6 players) Hero is UTG+1 with 5 5
UTG folds, Hero raises to $21, CO raises to $72, Button folds, SB calls, BB calls, Hero calls.

Flop: 5 8 8 ($288, 4 players)
SB checks, BB checks, Hero checks, CO bets $150, 2 folds, Hero...