Answer 1; Normally about 6 to 8 carriages.
Answer 2: It depends on where in Switzerland you want to go to. About 2 hours to Geneva, longer to other destinations.
lyon - vienna
The TGV does it in around 2 hours.
Lyon/Geneva Switzerland
Yes, there are TGV's going directly from Paris to Switzerland several times a day. There are two main routes: Paris Gare de Lyon - Basel - Zürich Paris Gare de Lyon - Geneva - Lausanne - and on to other destinations.
http://www.voyages-sncf.com 2 hours and 12 minutes
305KM according to Google Maps.
the Geneva lake como rocket
I think you can go by train
Yes
No, you have to take the train (TGV).
Line 14
No time at all as Zurich is in Switzerland.