Does nothing actually equals 0?
0 is something, it holds a concrete value as a number. Adding any number to zero results in that same number. On the other hand, nothing is a more abstract notion, representing the complete absence of anything. The word "nothing" is often used incorrectly, in my opinion. Interestingly, if we try to define "nothing", well that definition will be something. In other words: attempting to define "nothing" inevitably results in creating a definition, which paradoxically makes it something.
I don't claim to have the final say on this issue, but I just wanted to share what is on my mind right now.