Solution to 3: Hey, Did Anyone Lose a Package?
Every parcel have a shipping label, and this one is no exception. If you click on the image, you will find an image of a shipping label with some random text and a couple of barcodes. You should scan these barcodes:
The Data Matrix (Yes, that is NOT a QR code...): "Something is missing in the below barcode. Maybe what is missing will give you a hint to track the origin of the package"
The Code 39 Barcode: 345679AC
If you find what is missing in the Code 39, it is 128B. Following the barcode train of thought, this should point you to Code 128B.
Decode the tracking number using Code 128B and you get: MONTAG
MONTAG