Cycle Through A Series of Worksheets & Insert Rows, Then Special Paste Data

This should answer 3 and 4. I added onto AB33's solution for 1 and 2. If the "like" method doesn't work you could always try instr

Sub test1()
Dim sh as Worksheet
 For Each sh In ThisWorkbook.Worksheets
   With sh
   If sh.Name Like "WK*" Then
            .Rows(64).Resize(23).Insert Shift:=xlDown
            .Range("A87:AA109").Copy Destination:=.Range("A64")
            End If
    End With
 Next sh
 
End Sub