Yes.
But the NEC requires that your first disconnect be installed as close as practical to where the service enters the building. So if the bedroom isn't where the service enters the home, you will have to install a stand-alone disconnect where it does and then wire to your panel.
yes
Yes a breaker panel can be located in a hall. In fact a lot of apartments have them in that location just as you come in the main door to the apartment.
The panel and breaker have to be of the same manufacturer. This way the breaker will fit into the panel. If the panel has a push in bus bar, the breaker must also be the type to accept the bus bar. If the bus bars in the panel are of the bolt in type then the breaker also has to be a bolt in breaker.
No, a Cutler Hammer will not work in a GE panel or vice versa.
You can. Using these size breakers in a 60 amp sub panel might be pushing the limit for breaking the sub panels feeder breaker. The breaker feeding the sub panel will have to be no bigger than 60 amps because of the main bus bar capacity of the sub panel. It would be better to install a 100 amp sub panel and then there would be a bit of a buffer and you will have the ability to add additional small load circuits.
A 100-A sub-panel would be fed from a 100-A breaker.
yes
Don't put the panel on a outside wall. If you do not have a choice put insulation between the panel and the sheating.
Yes a breaker panel can be located in a hall. In fact a lot of apartments have them in that location just as you come in the main door to the apartment.
The panel and breaker have to be of the same manufacturer. This way the breaker will fit into the panel. If the panel has a push in bus bar, the breaker must also be the type to accept the bus bar. If the bus bars in the panel are of the bolt in type then the breaker also has to be a bolt in breaker.
I wnt to install a tandem breaker but my panel box won't let me. Why?
It is inserting a breaker into a service panel.
15 amp breaker.
You can't wire 2 beedrooms on one breaker.
only if listed in the panel board
No, a Cutler Hammer will not work in a GE panel or vice versa.
You can. Using these size breakers in a 60 amp sub panel might be pushing the limit for breaking the sub panels feeder breaker. The breaker feeding the sub panel will have to be no bigger than 60 amps because of the main bus bar capacity of the sub panel. It would be better to install a 100 amp sub panel and then there would be a bit of a buffer and you will have the ability to add additional small load circuits.
A 100-A sub-panel would be fed from a 100-A breaker.