==
When the values are the same, the program answers true.

!=
When the value is not the same, the program answers true.

>

<

num == str
Even when data type is different but the value is the same, the program answers true.

===
When both of the value and data type are the same,
the program answers true.

&&
When both are true, the program answers true.

||
When either is true, the program answers true.