Which is a better reagent for the reduction of an aryl nitro compound to an amine?

Which compound gives ethanamine upon heating with $[KOH + Br_2]$?

Alkyl cyanides on reduction by sodium and ethanol give primary amines. This reaction is called as

Indicate which nitrogen compound amongst the following would undergo Hofmann's reaction (i.e.,reaction with $Br_2$ and strong $KOH$) to furnish the primary amine $(R-NH_2)$.

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

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 $P$]