Acts 19:21 - 20:16 Why is exorcism not included in the lists of spiritual gifts?

Why are believers not given more biblical information on this subject?

Are we to view Acts 19:2-6 as a proof-text for
rebaptism of some believers
the laying on of hands to receive the subsequent blessing of speaking in tongues?

Define prophesying (Acts 19:6).

Why does Acts record Paul's encounter with both Apollos and these twelve disciples of John the Baptist?

Are Acts 19:11-12 normative for the church in all ages and cultures? Why/why not?

What was the purpose of these miraculous events? (cf. Acts 19:17)