Cooper Square Apartment Escape

Cooper Square Apartment is the highly expensive and luxurious residence in the New York city. My friend is staying in this apartment with his family. He invites me to his house for his birthday celebration. I forgot in which floor he is residing. I try to call him but he is not answering my call. I think he is very busy in the celebrations. And i wrongly entered into someone else house. Nobody is there. I surely want to attend the birthday celebration. So can you please find the related objects and solve the puzzles to find the solution to open the main door and escape me out.