To do this question you need to be really sure what the two symbols $\Rightarrow$ and $\Leftrightarrow$ mean.

$p\Rightarrow q$ essentially means that IF $p$ is True THEN $q$ is true.

$p\Leftrightarrow q$ means that $p$ is true if and only if $q$ is true.
This means that $p\Rightarrow q$ and $q\Rightarrow p$.
 

To get started, can you arrange these eight statements into two statements of the form $p\Rightarrow q$ and two statements of the form $p\Leftrightarrow q$?  Once you have done this, have a look at the remaining eight statements from the problem.