A1: the plates will start flying at you on there own. The bottles are on the floor and setting or hanging on things in the room.

A2: This is how you beat the kitchen level. First you beat all the spiders and the lady(creepy) and then you wait for the part when the plates start to fly around.You can get hints from the leoda lady and she said something like breaking plates and bottle will light the way for you.So you have to stand near every bottle and wait until the plate flies so it can hit the bottle and break.Then when all of the plates are broken the furnace will go on or fireplace thing.Then after that happens,the things start to like move and you find the 20 ghost that you need.I hope I helped you.o and the plates are just flying around but the bottles are on the shelves and on those things hanging from the ceiling and the tables(to answer your question).