FROM WHICH vs WHICH FROM/ (in) violation /time passes by/goes by

Could you please help me with these question, I would like to know if they are correct grammatically?

1 Where do the trains from/out of this train station go?

2 The ticket indicates from which station you leave/from which airport you fly out.

3 A camera in here would be in violation of people’s privacy./be a violation of ….




4 We have both extremes in our department, a very shy one and a turbulent person.

5 On Fridays you want to time to go by so fast that It seems to go so much slower./it goes so much slower.

The more you look at the time the slower the time goes/passes by.

6 I've used half of my battery so don't use up the last of my battery.



Thank you