A, B, C, D, E, and F are six people living in a six-storey building, with each person living on a different floor. The lowermost floor is numbered 1, the floor above it 2, and so on till the topmost floor is numbered 6. F lives on floor number 3. B and E live on floors below F's floor. D lives on a floor that is below A's floor but above C's floor. Who among them lives on the topmost floor?

A, B, C, D, M, and N live on six different floors of the same building. The lowermost floor is numbered 1, the floor above it is numbered 2, and so on until the topmost floor is numbered 6. A lives on an even-numbered floor but not on floor number 4. Only two people live between A and N. M lives on an odd-numbered floor but not on the lowermost floor. Only two people live between M and D. B lives immediately below M. How many people live between C and B?