Dyet1300's text guide is spot on in terms of hints and tips.
But I made a video with every challenge 3 starred.
I also provide hints and tips on the more difficult challenges so hopefully itnwill give you an easier time.
Below the video are all timestamps incase your after a specific one.
Hope this helps!
Area 1: Turnipseed Farm
Abduction 1 - Cornered Beef - 0:36
Race 1 - Rural Race - 3:07
Armageddon 1 - Burning Barns - 4:40
Rampage 1 - Farmland Fiasco - 7:00
Area 2: Rockwell
Abduction 2 - Rockwell Requisition - 10:10
Race 2 - Rockwell Rush - 13:00
Armageddon 2 - Rockwell Reclamation - 14:40
Rampage 2 - Rockwell BBQ - 17:00
Area 3: Santa Modesta
Abduction 3 - Santa Supply - 20:10
Race 3 - Santa Prix - 23:30
Armageddon 3 - So Long, Santa! - 24:50
Rampage 3 - Modesta Massacre - 27:50
Area 4: Area 42
Abduction 4 - Abduction 42 - 30:35
Race 4 - Desert Dash - 34:00
Armageddon 4 - Desert Devastation - 36:20
Rampage 4 - Military Mayhem - 39:20
Area 5: Union Town
Abduction 5 - Union Haul - 43:05
Race 5 - Union Town Trip - 45:35
Armageddon 5 - Union Tower Termination - 47:00
Rampage 5 - Union Town Turmoil - 49:50
Area 6: Capitol City
Abduction 6 - Capitol Confidential - 53:10
Race 6 - Capitol Chase - 56:25
Armageddon 6 - Capitol Collapse - 59:05
Rampage 6 - Capitol Carnage - 1:02:15