2) Depends on how the bundle is configured. I2P supports "outproxies" to the normal web. There are like 3 of them... Sadly the option is enabled by default. 3)

2) Depends on how the bundle is configured. I2P supports "outproxies" to the normal web. There are like 3 of them... Sadly the option is enabled by default. 3) I2P is using an onion routing like network. You only see the neighbouring hop/IP