What is it?
A bookcase
What is it?
A sofa
What is it?
A shower
What are they？
shelves
What is it？
A phone
What is it？
A window
What is it?
A mirror
What are they?
Stairs (no S = no points)
What is it?
A rug
What is it？
A sink
What is it?
A wardrobe / closet
What is it?
A stove
What is it？
A tub
What is it?
A fridge / refrigerator / fridge-freezer
What are they?
A fireplace and an armchair
What is it?
A microwave