report to show Unaccounted Paid invoice

Hi,

I have few reporting queries:-

1.Is there any report which can show all unaccounted paid invoice in the system.

2.Report which can show duplicate invoice across ledger, I know Invoice audit listing shows that but i think it will show ledger wise ,are there any which can we run for all ledger in one report even for a shorter date range.

Regards,

Neha