What's in your bedroom? (a lamp)
There's a lamp in my bedroom.
What's in your bedroom? (a bed)
There's a bed in my bedroom.
What's in your bedroom? (windows)
There are 2 windows in my bedroom.
What's in your bedroom? (chairs)
There are 2 chairs in my bedroom.
What's in your bedroom? (a desk)
There's a desk in my bedroom.