How can I travel from Bern, Switzerland to Toronto, Canada?

Please tell me all the ways of transportation and what i will cross.

Only one way to go......Airplane!! It normally costs around 700 Euro's depending on which Airline you go with.

Only by airplane. But consider visiting Toronto after April because it's only 55*F/13*C up here.

train to Zurich and Air Canada direct to TO.
Or you could take the train to Paris or Frankfurt, plane might be cheaper from there.

Swim :) Seriously, your only choice is air as you need to cross the ocean. Unless you can find a freighter that will take passengers.