100NL, river decision!!

Two hands on the river.
hand 1: villian is 45/12/1.6 unknown over 88 hands. Is this a call or not given a good odds? I just cant see any merit of betting myself though. Turn play is okay?
No-Limit Hold'em, $1.00 BB (9 handed) - Hold'em Manager Converter Tool from FlopTurnRiver.com

UTG+1 ($103.40)
MP1 ($100)
MP2 ($104)
MP3 ($39.50)
CO ($146.20)
Button ($122.45)
SB ($100.50)
Hero (BB) ($106.80)
UTG ($121.95)

Preflop: Hero is BB with Khttp://www.flopturnriver.com/phpBB2/...miles/club.gif, Khttp://www.flopturnriver.com/phpBB2/...iles/spade.gif
2 folds, MP1 calls $1, 5 folds, Hero bets $5, MP1 calls $5

Flop: ($12.50) 5http://www.flopturnriver.com/phpBB2/...miles/club.gif, 8http://www.flopturnriver.com/phpBB2/...iles/heart.gif, Qhttp://www.flopturnriver.com/phpBB2/...iles/spade.gif (2 players)
Hero bets $8, MP1 calls $8

Turn: ($28.50) Qhttp://www.flopturnriver.com/phpBB2/...iles/heart.gif (2 players)
Hero bets $17, MP1 calls $17

River: ($62.50) Jhttp://www.flopturnriver.com/phpBB2/...iles/spade.gif (2 players)
Hero checks, MP1 bets $31, Hero ?

hand 2: villian is an obvious donk running 37/4/0.6 with 1% 3 bet over 350 hands. He suddenly Insta shoved on this river.
No-Limit Hold'em, $1.00 BB (8 handed) - Hold'em Manager Converter Tool from FlopTurnRiver.com

SB ($108)
BB ($113.10)
UTG ($105.35)
UTG+1 ($112.95)
MP1 ($50)
MP2 ($118.70)
CO ($86.70)
Hero (Button) ($114.70)

Preflop: Hero is Button with 8http://www.flopturnriver.com/phpBB2/...iles/spade.gif, 8http://www.flopturnriver.com/phpBB2/...iles/heart.gif
4 folds, CO calls $1, Hero bets $4, 2 folds, CO calls $3

Flop: ($9.50) 5http://www.flopturnriver.com/phpBB2/...iles/spade.gif, 4http://www.flopturnriver.com/phpBB2/...iles/heart.gif, 9http://www.flopturnriver.com/phpBB2/...es/diamond.gif (2 players)
CO checks, Hero bets $7, CO calls $7

Turn: ($23.50) 8http://www.flopturnriver.com/phpBB2/...es/diamond.gif (2 players)
CO checks, Hero bets $16, CO calls $16

River: ($55.50) 10http://www.flopturnriver.com/phpBB2/...es/diamond.gif (2 players)
CO bets $59.70 (All-In), Hero ?