To find out how many skits are in Colby's video, we can start by calculating the total duration of the skits.
- The total length of the video is 181 minutes.
- The introduction is 5 minutes.
- Thus, the remaining time for the skits is:
\[ 181 \text{ minutes} - 5 \text{ minutes} = 176 \text{ minutes} \]
- Each skit is 8 minutes long. To find out how many skits can fit into 176 minutes, we divide the remaining time by the length of each skit:
\[ \frac{176 \text{ minutes}}{8 \text{ minutes/skit}} = 22 \text{ skits} \]
Thus, the number of skits in Colby's video is 22.
The correct answer is C. 22.