Hi!
Here are some situation I want so talk about and find most optimal game line.

1.
Hero - SB w QQ
CO - 21/18, RFI 25
BTN - 23/19, 3bet vs CO 9%

CO opens, BTN 3bets, Hero ?(

2.
Hero - SB w QQ
CO - 45/20, f23bet 40%
BTN - 23/19, 3bet vs CO 9%

CO opens, BTN 3bets, Hero ?(

Questions:
1. If we play cold4bet, is it 4bet/call or fold? Or may be fold to CO 5bet and call BTN?
2. If we cold calling 3bet, what`s our plan for post flop OOP?
3. Which stats to use making decisions?
4. What if we have AKs/AKo?