Why x is not incremented in the following

Question

int x=1;
x++;
cout<<x;

Answer 1

x++ - Uses x's value before incrementing it
++x - Increments x before using it.

int x = 10;
cout << x++; //10
x++; // +1
cout << x; //10 + 1 = 11

Answer 2

Incremented

Answer 3

It is incremented?

Answer 4

because when it shows output the value of x for first time it shows the old value of x
but
when it execute second time it shows the increamented value of x

but why does this happen??

Answer 5

but how it is not incremented when I run the program