For example:
- Can you open I2P pages without having I2P installed?
- How Hornet high-speed onion routing compares to other overlay networks such as Tor or I2P?
- Where are the files stored in GNUnet network?
- Why doesn't Google index the darknet?
- How can you access the darknet from a Chromebook?
- How to access IRC, BitTorrent or other services via I2P?
- How to connect to FTP via I2P?
- How do I register new I2P hostname?
- How does I2P prevent domain names from being spoofed?
- How to configure web browser to open I2P websites?
- etc.
Above are just few samples, but I'm asking about in general about the darknet.