The contrapositive of $\sim q \to p$ is equivalent to

If $p: \text{A man is happy}$,$q: \text{A man is rich}$,then the symbolic form of '$\text{A man is neither happy nor rich}$' is

The number of ordered triplets of the truth values of $p, q$ and $r$ such that the truth value of the statement $(p \vee q) \wedge (p \vee r) \Rightarrow (q \vee r)$ is True,is equal to

If $\sim p \to q$ is false and $q \leftrightarrow r$ is false, then the truth value of $(p, q, r)$ is...

The inverse of $p$ $\rightarrow (q$ $\rightarrow r)$ is logically equivalent to

The dual of the statement pattern $\sim p \wedge (q \vee t)$ is (where $t$ is a tautology and $c$ is a contradiction).