The Raven Remastered

Episode 3 has 5 secrets for 8,500 points. You can follow this site's walkthrough for this game if you need an in depth guide. This guide only discusses what you're looking for:

A thief and a murder
Begin chapter (1000)
Talk to Adil after solving the baroness safe puzzle (say "riddle solved") +1000 (2000)

Under pressure
Exit through grate +1500 (3500)

Ghost of the past
Find the doctor and finish all dialogs +500 (4000)

A simple plan
Solve triangle puzzle and open secret door +2500 (6500)

A nasty surprise
Use post on glass with diamond and gum +2000 (8500)

Credit for the information:
Apostle92627
&
https://steamcommunity.com/app/233370/discussions/0/54073986...