Here's a question and a few possible answers: 

Q: Billy  found that his toilet was overflowing.  Water was splashing onto  the floor and making a huge mess.  He got a mop and tried to clean it up.  Where might the toilet be located?
Possible A: apartment, house, bedroom, motel room, bathroom

Why is "bathroom" an answer aligned with human common sense? 


it could only be in the bathroom.