Can two angles be supplementary, if both of them are obtuse? (Yes / No)

Can two angles be supplementary, if both of them are right angle? (Yes/No).

Can two angles be supplementary, if both of them be acute? State with Yes/No.

Name the four pairs of supplementary angles shown in Figure.

In Figure, $A, B, C$ are collinear points and $\angle DBA=\angle EBA$.

Name two linear pairs.

In Figure, $A, B, C$ are collinear points and $\angle DBA=\angle EBA$.

Name two pairs of supplementary angles.

If the complement of an angle is $28°$ and $k°$ is the supplement of the angle, then find the value of $k$.