A couple of KK hands, problems on the flop

[STARSCREAM.]

These are two pretty common situations I find myself in, usually I have reads on players, but this time both players (seperate sessions) are unknown, as it is literally the 1st and 2nd orbit on each table.

What is your standard line here vs an unknown?

Full Tilt Poker, $0.50/$1 NL Hold'em Cash Game, 6 Players
LeggoPoker.com - Hand History Converter

BTN: $98.50
SB: $99
BB: $93
UTG: $29.65
Hero (MP): $201.50
CO: $250.45

Pre-Flop: K[img]/images/graemlins/club.gif[/img] K[img]/images/graemlins/diamond.gif[/img] dealt to Hero (MP)
UTG calls $1, <font color="red">Hero raises to $5</font>, CO folds, BTN calls $5, 3 folds

Flop: ($12.50) J[img]/images/graemlins/spade.gif[/img] 8[img]/images/graemlins/spade.gif[/img] Q[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">Hero bets $8</font>, <font color="red">BTN raises to $18</font>, <font color="red">Hero</font>

Full Tilt Poker, $0.50/$1 NL Hold'em Cash Game, 6 Players
LeggoPoker.com - Hand History Converter

SB: $95.75
Hero (BB): $101
UTG: $97
MP: $326.35
CO: $165.20
BTN: $101.80

Pre-Flop: K[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/spade.gif[/img] dealt to Hero (BB)
4 folds, SB calls $0.50, <font color="red">Hero raises to $4</font>, SB calls $3

Flop: ($8) J[img]/images/graemlins/heart.gif[/img] T[img]/images/graemlins/spade.gif[/img] 3[img]/images/graemlins/spade.gif[/img] (2 Players)
SB checks, <font color="red">Hero bets $8</font>, <font color="red">SB raises to $16</font>, <font color="red">Hero