Across

4. What is the colour of post boxes in China?

5. What is the name of the organization which deals with collection, processing, transmission, and delivery of mail? (Omit the space in between)

7. Which unmanned aerial vehicles bear the name of an insect, were used earlier for military purposes, and are now used for mail delivery through adverse weather to remote regions in the UK?

9. What is the standard colour of post boxes in England and its neighbouring countries?

10. What do you stick on the envelope of your letter or the wrapping of your parcel, in evidence that you have paid the tax for availing the mail service?

11. What is the colour of post boxes in Europe?

Down

1. Who delivers letters and parcels to our doorstep?

2. What is the colour of post boxes in the United States and Russia?

3. Which birds (not owls) have been extensively used by Muggles for mail delivery in the past for both commercial and military purposes?

5. Besides letters, what other heavier thing can you send through a courier service?

6. What starts with E, ends with E, and contains letters?

8. What is the name of the box in a post office where you can leave your mail to get it delivered? (Omit the space in between)

Puzzle: https://i.postimg.cc/KcNPSFh7/crossword-puzzle-themed-on-letters-and-parcels-1.png

Solution: https://i.postimg.cc/tgNTZq52/crossword-puzzle-themed-on-letters-and-parcels.png

Link to puzzle: 

https://crosswordlabs.com/view/crossword-puzzle-themed-on-letters-and-parcels

Password for link to puzzle: Hiya