Which of the following reactions can be used to prepare an amine from an amide?

Predict the major product $P$ in the following sequence of reactions$-$
$(i)$ $HBr$,benzoyl peroxide
(ii) $KCN$
(iii) $Na(Hg)/C_2H_5OH$
[Image: $1-$methylcyclopentene reacting with the above reagents to form $P$]

Which of the following reactions are used in the preparation of aliphatic primary amines?
$I$. Gabriel-phthalimide reaction
$II$. Hoffmann Bromamide reaction
$III$. Carbylamine reaction
$IV$. Sandmeyer reaction

Amides may be converted into amines by a reaction named after :

The starting material that produces pentanamine by the Hoffmann bromamide reaction is

Among the following set of reactions,the most suitable method for preparing a secondary amine is: