1.I talked with each individual member of this party，and got nothing useful. 2.I refused to answer each individual question. 3.It is an individual pizza. 4.It is a piece of individual cake. 5.We should respect individual freedom. 6.The facilities of this homestay are individual. Let’s discuss 4. Not sure it makes sense. If it’s individual, can you have a piece of it?

1.I talked with each individual member of this party，and got nothing useful. 2.I refused to answer each individual question. 3.It is an individual portion of pizza. 4.It is an individual piece of cake. (A cake cannot be "individual") 5.We should respect individual freedom. 6.The facilities of this homestay are individual. I don't know what this means. Do you mean that the facilities are unique? Do you mean that one person stays in each room?