Linear Pair of Angles

In the given figure, rays OA, OB, OC and OD are such that $\angle AOB = 56°, \angle BOC = 100°, \angle COD = x° and \angle DOA = 74°.$
Find the value of x.

In the given figure, two straight line $PQ$ and $RS$ intersect at a $O$. If $\angle POS=114°$, find the measure of each of the angles $\angle POR, \angle ROQ \& \angle QOS$.

In the given figure, two straight line $AB$ and $CD$ intersect at a point $O$. If $\angle AOC = 42°$, find the measure of the angles $\angle AOD, \angle BOD \& \angle COB$.

In the given figure, $AOB$ is a straight line and the rays $OC$ and $OD$ stands on it. If $\angle AOC=65°, \angle BOD=70°$ and $\angle COD = x°$, find the value of $x$.

In the given figure, $AOB$ is a straight line and the ray $OC$ stands on it.
If $\angle AOC=(2x - 10)°$ and $\angle BOC=(3x + 20)°$, find the value of $x$.
Also, find $\angle AOC$ and $\angle BOC$.

In the given figure, $AOB$ is a straight line and the ray $OC$ stands on it. If $\angle AOC=64°$ and $\angle BOC=x°$, find the value of $x$.