Divinity 2: Statue Puzzle at Keara’s Headquarters

Divinity 2 is an interesting game for me in the story and game play. While I playing this game, I feel I'm in the game. The broad story is very simple. It's the story between dragon knight and dragon slayer. And once our character will be a dragon slayer who hunt the dragons but ,by chance, our character will be a dragon knight. And both sides become our opponents.

So far, I walk to Keara's Headquaters, and face with the puzzle problems in the games. I'm interested in this puzzle about how the creator think this puzzle? for me, it's very hard to solve it.

There 5 five statues. We have to identify their names to open the last door in order to fight with Keara.
There are 2 types of statue. First one will be statue with the fire blades, another one will be statue with the blades.
I will give 5 statues into the number of 1, 2, 3, 4 and 5  for easy understanding.
There are 5 five names: Mayhem, Chaos, Devastation, Havoc, Waste.

The first room, (1) stay alone and it's a fire blades type.
The second room, (2), (3) stay together. (2) is a blades and (3) is a fire blades.
The third room, (4), (5) stay together. (4) is a fire blades and (5) is a blades.

Each statue will give us clues.
(1) hints: Mayhem is not in the same room as Havoc. Devastation is in
the same room as Chaos.

(2) hints: I am either Devastation or Chaos. Waste is in the same room
as Mayhem.

(3) hints: Mayhem is alone in his room. Havoc is in this room.

(4) hints: I am neither Chaos, nor Havoc. Chaos is neither in my room,
nor in Waste's.

(5) hints: I am in the same room as Waste. I am neither Mayhem, nor
Waste.

We have to identify each statue name with those hints. At last, I can pass but take a long time - -".

Hints: Some sentences are lying, we have to change them into opposite way.

Answer: (1) is Devastation, (2) is Waste, (3) is Chaos, (4) is Havoc, and (5) is Mayhem.

(Drag over to see hints and answer.)

Hope that it can help ^^