There are many questions being asked about the two witnesses.
Search Google for the following questions.
Are the two witnesses here today?
How do we identify the two witnesses?
Where are the two witnesses now?
What will the two witnesses look like?
When will the two witnesses begin their ministry?
Are the two witnesses actual people?
Are the two witnesses the same as the two olive trees and the two lampstands?
Why are the two witnesses arrayed in sackcloth?
What kind of power will the two witnesses have?
Why will the two witnesses prophesy a thousand two hundred and threescore days?
Three and one half years or 1260 days.