General Accounting Question:

Answer #1
Posting of wages twice can be rectify as follows.
Actual
Wages A/c. Dr. XXX
To Cash A/c. Cr. XX
(payment of wages through cash)

For Rectification

Cash A/c. Dr. XXX
To Wages Cr. XXX
(wrongly posted wages entry is rectified)

Answer #2
to treated as prepaid wages, because when we given payment to worker they not set back so entry is taken on next time
Wages a/c
Prepaid wages a/c