How many ghost can fit in a small room

How many ghost can can fit in your car forget about seatbelts
How many ghost would you have to have to carry on a conversation with just one ghost example 1 that can see 1 that can hear 1 that can talk 1 that can interact 1 that has a intelligence

I also wonder about what do my animals see that i don't and do they hear things i can't and what if they really are smater than us

just a little to think about and sometimes i think i will never know the answers to somethings my mind thinks up lol lol lol

!. how many orbs are following the ghosts? that helps figuring how many fit in the car LOL
2. I drive a smartcar so not too many will fit
3. "How many ghost would you have to have to carry on a conversation with just one ghost example 1 that can see 1 that can hear 1 that can talk 1 that can interact 1 that has a intelligence":
depends if the ghost is an adolescent, teenager or adult

I could add depends on if its female or male because to a male yes and no are considered a conversation lol so sorry just had to say that I know all men aren't like that just 99 %