Let's start off by defining what the cell cycle is:
Let's use what we know of the cell cycle to answer the questions.
From the first slide, we don't see anything happening holistically. This would imply that the 2 cells are in interphase, which most cells spend their life in.
From the second slide, we see that spindle fibers and centrioles form. This would mean that these cells are in the stage of mitosis, specifically in the stage of prophase.
From the third slide, we see that the chromosomes for each cell are aligned in the middle plane. This would mean that these cells are still in the stage of mitosis, specifically in the stage of metaphase.
From the fourth slide, we see that the chromosomes have now split apart and are going to opposite ends of the cell. This would mean that these cells are still in the stage of mitosis, specifically in the stage of anaphase.
From the fifth slide, we can see that the DNA is now in respective nuclei and that the cytoplasm is about to cleave into two different cells. This would mean that these cells are still in the stage of mitosis, specifically in the stage of telophase.