won too tree, watt due sea?

Mr. Flibble

(1)
SB in this hand is oliviastone who seems to be a good tag. Two questions; does everyone fold the flop here? Is my river bluff crazy, trying to get a ten to fold?

CO ($490.38)
Button ($372) [Mr. Flibble]
SB ($467.75)
BB ($243.75)

Mr. Flibble is Button with 8s, 8d
Preflop: (4 players, $3)
CO folds, Mr. Flibble calls $2 and raises $5, SB calls $6, BB folds

Flop: 2c, Ts, 7c (2 players, $16)
SB checks, Mr. Flibble bets $10, SB calls $10 and raises $20, Mr. Flibble calls $20

Turn: 3c (2 players, $76)
SB bets $50, Mr. Flibble calls $50

River: 4s (2 players, $176)
SB checks, Mr. Flibble bets $100...

(2)
And is this standard or am I much more likely to be up against AA-JJ than 99-? If you fold, at what point do you?

MP ($409.38)
CO ($449.75) [Mr. Flibble]
Button ($460.50)
SB ($132.62)
BB ($204.75)
UTG ($228.75)

Mr. Flibble is CO with Ts, Th
Preflop: (6 players, $3)
UTG calls $2 and raises $7, MP folds, Mr. Flibble calls $9, Button calls $9, SB calls $8, BB folds

Flop: 2d, 2h, 8s (4 players, $38)
SB checks, UTG bets $15, Mr. Flibble calls $15, 2 folds

Turn: 6c (2 players, $68)
UTG bets $35, Mr. Flibble calls $35

River: 2c (2 players, $138)
UTG bets $45, Mr. Flibble calls $45

(3)
Haven't seen this villain before so no reads. How do you like the river value bet, or is an idiot with AK too likely?
If you check do you fold to a raise?

SB ($605.13)
BB ($183) [Mr. Flibble]
UTG ($482)
MP ($46)
CO ($242.25)
Button ($199)

Mr. Flibble is BB with Tc, Td
Preflop: (6 players, $3)
UTG folds, MP calls $2, CO calls $2 and raises $8, 2 folds, Mr. Flibble calls $8, MP folds

Flop: 4c, 2h, 5d (2 players, $23)
Mr. Flibble checks, CO checks

Turn: 9h (2 players, $23)
Mr. Flibble bets $16, CO calls $16

River: Kc (2 players, $55)
Mr. Flibble bets $32