Playing the game you may run into Crow and you will definitely need to solve her bloody riddles. I'll give you the answers to them below:
Answer to riddle 1: Dust.
The answer to riddle 2: Fire and smoke.
The answer to riddle 3: Salt.
Okay with the riddles, now let's move on to the endings!

And there are several of them, screenshots attached)
Basically the ending comes from the last choice when you meet Morok.
In order to communicate with animals, you need to drink the potion, which will give the witch doctor at the beginning of the game!!!! If you refuse the potion, you won't be able to talk to the animals and you won't be able to open some of the endings!!!!
For 1 ending choose: You need to kill. (Beforehand, you need to talk to the she-wolf and help her kill the hunter, then make ammunition from wood).
For 2 endings, choose: Take my soul, but free all the others. Eino, the miner, the doctor, the witch doctor. They must all live without your oppression.
For the 3 endings we choose: You're right, it's my second chance. I should stay with Eino.
For the 4th ending we need to kill the she-wolf and in the conversation with Morok choose: You need to be killed.
For the 5th ending you have to pick the flowers on the island, solve Crow's riddles, then give Eino the flowers and give him the ring. Afterwards, when talking to Eino, we choose: This ring looks so familiar to me. Why, when I look at it and at you, I feel like we were close.

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