Brain Teaser (well it is for me!):

Cieling rose; Switched Live To Earth or Neutral = 240V..OK.

1st Neutral Black To Earth = 0V..OK.

Another Black 2nd(Supossed Neutral)Joined to 1st Neutral. When separated from 1st Neutral reads To earth = 240V...?
and to Switched Live (on) 0V.

When joind back to 1st Neutral reads To Switched Live = 240V. and to earth 0V.

Howcome This supposed Neutral carries 240V when separated from other Neutral?

Don't shout at me this for my neighbour!!


All I Wanted Was A Cup Of Tea!!