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
The train journey from Lyon to Annecy typically takes about 2 to 2.5 hours, depending on the type of train and specific schedule. Direct trains are available, making the trip convenient for travelers. It's advisable to check the current timetable for exact departure and arrival times.
the Geneva lake como rocket
305KM according to Google Maps.
Yes
I think you can go by train
No, you have to take the train (TGV).
No time at all as Zurich is in Switzerland.