1) There are 16x2 = 32 chromatids present in prophase (there are 2 chromatids in a chromosome)
2) There will be 16x2 =32 chromosomes present in anaphase; I'm not sure if the question is asking about the replicated chromosomes ("daughter") or all of the chromosomes. If it's just asking for daughter chromosomes, I would say 16 -- 16 are the parent, and 16 are the daughter. If it's asking for total chromosomes, I would say 32.
3) After cytokinesis, each daughter cell will have 16 chromosomes -- just like the parent cell!