nothingness is NOT something. What ‘NOT’ something?
You cannot ask this question because “what” implies “something”. 
nothing = no thing. nothing is not a thing. Nothingness is the lack of being; nonexistence.
As Pandora points out your wasting time asking nonsensical questions about nothing.
The only sensical way to use the word ‘nothing’ is as a relative term:
If box A is empty apart from air and box B is full of paper we could say
“Box A has nothing in it.” where we understand that this is ‘nothing’ is only relative not absolute.