Queen of the South knocked holders St Johnstone out of the William Hill Scottish Cup with a 2-0 win at Palmerston on Saturday.
Second-half goals from Derek Lyle and Gavin Reilly sent the Championship side into Monday afternoon's quarter-final draw as Saints lost their grip on the trophy.
Premiership leaders Celtic eased to a 2-0 victory over Dundee at Dens Park. Leigh Griffiths scored early on against his former club and Stefan Johansen struck just after the break.
Inverness CT saw off Partick Thistle with a 2-1 win at Firhill. Marley Watkins and Greg Tansey scored in the first half and Lyle Taylor's reply was not enough for the Jags.
Hibernian came from behind to beat Arbroath 3-1 at Easter Road. Kieran Stewart gave the League 2 side a shock lead but Franck Dja Djedje, a Liam Gordon own goal and Dylan McGeouch sent Hibs through.
Falkirk ended Brechin City's long unbeaten run thanks to a late David Smith goal, which sealed a 2-1 success after Alan Trouten's penalty had cancelled out David McCracken's opener.
League 2 Berwick Rangers were denied in injury time when Lowland League Spartans secured a 1-1 draw at Ainslie Park, where Ally MacKinnon equalised after Paul Willis had netted early on.