I live in a flat with an old type circuit breaker connected to an O Ring (i.e., not one of those new 'consumer unit', which allows you to switch on/off on a room by room basis, just one on/off switch to switch on/off for the whole flat).
Anyway, in one of the bedroom, where there are two electrical sockets + a switch for the lights, one of the electrical socket has stopped working (i.e., a lamp which turns on and lightens up when plugged into another socket and turned on does not lighten up when I do the same thing with this particular socket).
Given this situation, do I just need to replace the socket or how likely is it that there might be something wrong with the circuit (without buying more equipments/meters, etc. to do more tests)?