Hand#1: With somany people seeing the flop and you being in early position there is really no reason to chase with 2 overs and a 3rd best flush draw. Fold on the flop

Hand #2: Bet much more on the flop, with so many people in you do not want to let people see the turn for cheap. Bet at least 3/4 of the pot, if you are reraised act according to your reads or fold with no reads

Hand#3: Hard to judge without a read, the fact that they are not suited is not the factor to consider. Most likely you are facing a coinflip - QQ, JJ,TT,99 or low PP, with a small chance you are dominated (AA, KK) or dominating (AQ, AJ, total bluff)
Without a read I would call

Hand#4: I dont consider KQs premium hand, and raising with it preflop from MP is an invitation to trouble. Dont be afraid to play this hand multiway.

Hand#5: Nicely played

Hand#6: If you see that 5BB raises do not scare anyone raise more, you dont want the pot to be so multiway