The Train

Walkthrough:
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-take the screwdriver and the knife.
-use knife on the yellow box on the shelf. 
-get the scissors.
-use screwdriver on the screws of the couchs.
-get red and blue cords from the couchs.
-get blue bag from the right top shelf.
-cut it with the scissors and get a green key.
-get an umbrello from the left top shelf.
-open it and see numbers 830.
-open the suitcase with the code and get the match box.
-get the yellow key from the matchbox.
-open the panel on the floor with the yellow key and get the battry.
-use the green key on the door.
-get the black key in the other part of the train.
-use the black key on the electricity box. 
-insert the red and blue cords and the battery in the box.
-go back once and pull the lever.
-have a nice trip.