From the given diagram below, which are the pairs of adjacent angles?

$\angle PQS$ and $\angle SQR$ are adjacent angles because they have one common arm (ray QS) and one common vertex (Point $\mathrm{Q}$), ray PQ and ray QR are their non-common arms.
For adjacent angles $\angle PQS$ and $\angle SQR$,
$\angle PQS+\angle SQR=\angle PQR$