This is gonna be pretty open ended/possibly dumb but I just wanted to get everyone's opinions on monotone flops as I feel that they represent a very common situation where I'm missing some opportunities. Just to put some direction on the discussion I guess I'll lay out some hands.

Hand 1)
40/8/passive fish limps in EP, we raise in LP. Fish calls, HU to flop.
Flop (11bb): T73
Fish checks,
How do we feel about betting here with QJ:? What about 9T?

Hand 2)
22/17/4 regular TAG opens in MP, we flat OTB with 67, blinds fold. HU to flop.
Flop (9bb): T73
TAG cbets, how do we feel about raising to 3x? What's the worst semi-bluff you feel we can raise here?

Hand 3)
We open OTB, regular TAG from hand 2 calls in the BB.
Flop (8bb): T73
He checks,
How do we feel about betting here with QJ:? What about 9T?

Thanks for your comments.