Which of the following does not have intermolecular hydrogen bonding?

Which among the following has highest basic strength?

Identify an aromatic, mixed, $3^{\circ}$ amine among the following compounds.

How many moles of iodomethane are consumed in the following conversion?

$$\mathrm{CH}_3 \mathrm{NH}_2 \xrightarrow[\Delta]{\mathrm{CH}_3 \mathrm{l}}\left(\mathrm{CH}_3\right)_4 \mathrm{~N}^{+} \mathrm{I}^{-}$$