#1 Dont fold and prob don´t call. His sizing makes stack sizes awkward, but I dont think you can not shove.

#2 Stop associating this line with TT-QQ, seriously. Assuming hes a true fish I´d b/3b, no point in having 20 behind on the river. He shows up with a lot of pr+draw, 2pr and sets, along with TPTK and TP2K. Lacking a solid fish read Id go for b/f turn c/f river

#3 Sucky spot. Im folding because paying off small sets in 3bet pots drives me insane. Especially when the greedy fucker slowplayed his hand all the way.

#4 bet turn, as played c/c or c/r river