What is obtained by the reduction of acetaldoxime?

The product $(A)$ of the given reaction is:

Suggest a route by which the following conversion can be accomplished: Cyclohexanecarboxamide to $N$-methylcyclohexanamine.

Identify $B$ in the following conversion: $CH_3-I$ $\xrightarrow{KCN} A$ $\xrightarrow{Na / C_2H_5OH} B$

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

$Cl-CH_2-COONa$ on boiling with aqueous sodium nitrite gives: