#1: Reraise because he raises with 30% of his hands and this is going to be even looser at the button.
Sometimes i like to call and donk the flop in these kind of situations if i know they are more likely to fold postflop.
#2: Just fold, no need to mess with a tight player. You just end up being out of position and dominated by hands like AQ
#3: I hate these kind of hands, out of position and if you the flop comes with ace,king,queen my oponent is likely to have a better hand.
Currently playing NL2 and if NL5 is similar we might bet and both players call, then our fold equity is messed up.
I prefer to fold, just because it keeps me from getting into though spots.
#4: I will fold in this situation, same reason as last hands, just dont like getting into a big pot with multiple oponents, lots of tricky spots.
#5: I usually fold here as well, but i guess you can call if you think there are opportunities to get the other players all-in when you have straight/flush.
I am playing NL2 FR so i understand that when playing SH you can get a little looser with the range of hands you are playing. But for me it has been working good to just play the good hands. Getting into big pots with mariginal hands requires some good statistics, and if you do it wrong you are going to get punished