This is an example of an lower thirds title, which means having a clip on the lower third of the screen. You might use this kind of title to label a location or to show a persons name.

This is an example of an fullscreen title, which means having a full title on the whole screen . You might use this kind of title at the beginning of a clip or as a transition between two clips.

This is an example of an template title, which means having a title bar on the lower third of the screen. You might use this kind of title when showing an interview clip. To do this you click on Title then on New title

A simple cut in the timeline means deleting a clip off the timeline while leaving a gap where the clip was deleted. When you cut, the other clips in the timeline have a gap in between.
A ripple edit is when a clip is deletied and there is no gap left where the clip was deleted. You do this by right clicking the clip and selecting "Ripple Delete". When you ripple delete, the other clips to the right of the deleted clip move to fill the gap.
Lifting and extracting are two ways to delete a clip at one time. To do this, you set the in and out points on the timeline and click on the lift button on the program panel.
Lifting is like deleting a clip and leaving a gap on the timeline between the clips, while extracting is like filling the gap, in terms of what happens to the other clips in the timeline.
This is an example of an lifting and extracting edit. I decided to edit the two clips where I did because thats where the original clip was.

This is an example of an overlay edit. An overlay edit places a clip top of the existing clip. To do this, you drag the clip onto the tmeline and the drag the clip over the other clip and place it there. I decided to place the 2nd clip where I did because It was where it had the best effect.

This is an example of an inserty edit. An insert edit places a clip top of the existing clip while holding Ctrl. To do this, you drag the clip onto the tmeline and the drag the clip over the other clip while holding Ctrl and place it there. I decided to place the 2nd clip where I did because It it had the best effect.
The difference between an overlay and an insert edit is that in an overlay the video does not split the video in two.
You would use an overlay when you want to show that time is continuous, while you’d use an insert edit when you want to show different scences that are happening at the same time without time being continuous. In this case the ovelay edit works better because having a more realistic time gives the video a better effect and looks much better.