  Here, by introducing a version of "Unexpected hanging paradox" we try to open
a new way and a new explanation for paradoxes, similar to liar paradox. Also,
we will show that we have a semantic situation which no syntactical logical
system could support that. In the end, we propose a claim as a question. Based
on this claim, having an axiomatic system for computability theory is not
possible. In fact we will show that the method applied here could yields us as
a generalized result, some Theories like Physic is not axiomatizable.
