During which stage of cell division do kinetochores attach to spindle fibers?

In the $24$ hour average duration of the cell cycle of a human cell,how long does the cell division proper ($M$ phase) last?

What is the definition of the mitotic index?

In which phase do chromosomes separate and move towards opposite poles?

Choose the correct sentences for $telophase$.
$1.$ Chromosomes are arranged at the equator.
$2.$ Formation of nuclear membrane.
$3.$ At the end of this phase,nuclear membrane,Golgi complex,and endoplasmic reticulum are reformed.
$4.$ End of contraction of chromosome.
$5.$ This phase starts with chromosomes according to their vertical contraction.

In which phase of cell division can chromosomes be counted most easily?