I am curious to know what ranges you give villain here. What range to you give him when he bets and what range when he checks behind? And what are our optimal plays against it with our medium strong hands. This is a very common spot and it gives me a lot of trouble every time.

6max
100BB effective stacks
Hero is CO
Villain BU (unkown regular)

Preflop
Hero raises QT to 2.5bb
Villain 3-bets 8bb
Hero calls.

Flop (Pot 20bb) T 5 5
Hero checks
Villain bets 6bb
Hero calls 6bb

Turn (Pot 32bb) A
Hero checks

1) Villain checks behind
What range has Villain when he checks this specific Turn?
Imo when he checks he either has at least some kind of weak showdown value (Tx, 66+, Ax). His bluffs and draws should continue barreling right?
When Villain checks behind all these hands doesn't it make it way too easy for me to just x/f any river? Am I overthinking?

2) Villain bets 20bb
What range has villain when he bets this specific Turn?
Do we x/c here?


Let's assume river is a blank like 4

3) If villain checks Turn - do we bet, x/c or x/f?

Any idea is very much appreciated