I'm doing these now if you need tou can look at some answers on my questions
It ran resources place to place way faster than horse and buggy.
Some of them who immigrated got to were they wanted but some got captured
It might have been seen as hypocritical because he claimed that the Soviets did not use armed people and weapons during the uprising and he wanted for Lithuanians to come back to the Soviets voluntarily. He did threaten with weapons and war, but it would be hypocritical to use it since he claimed that they were not aggressive.
The congress was very powerful at the time and needed to be put in line. The two branches were created to control it. The remaining two branches were not specifically enumerated as thoroughly because they were still weak at the time and their power developed over time.