First, you have to find all the pieces of paper around counterfeit island. When the pictures are assembled together, it will show a picture of a dragon. Make sure the dragon on the door is the same as the dragon in the picture.
The "ram thing" is a dragon face. (see the related question)
You don't. Later in the game, you will receive a key to open the door of the cottage.
The curator of the Museum Fantastique summons you to Early Poptropica and gives you a key, which fits the cottage door.
I forget but I think the lady in the museum gives the key to you...
The art museum on counterfeit island opens after you go to the guy at the dock.
After you are in the Widow's lair, you can use it to open the final door to her trove of stolen art.
you have to find the door that goes with it,( is the key to open the janitors closet that will help you in a time that you need it.)
The key card will open the door in the Black Widow's lair, once you get past the guards. (see related question)
you have to jump to the second box and when the manleaves run be-hid him and jump on the couch and you use the keycard open the door
You don't. It is just a distraction.
If you mean the hatch thing on the roof in the middle you have to collect all 6 pieces of torn paper to form a picture of the dragon lock mechanism. Adjust the mechanism so it matches the picture and it will let you in.
First, you have to collect all 5 pieces of the dragon drawing. Then, rearrange the locks features to match the drawing.