"Who knows the most?"

Translation: Vem vet mest?

[Lundgren8]

This is the Swedish version of the TV show ’Fifteen to one’. See here.

[sandeepa2]

In which context can we use känner to mean know

[Austin211825]

Känner is when you know someone. Vet is when you know or have knowledge of some facts

[JimNolt]

So this could be "Ven känner mest" if you mean "Who knows the most (people)?" ?
Ah, but I see that "flest" is used for countables, so I guess it should be "Vem känner flest?" (Eller är det jag som vet minst?)

[Coreopsis2943]

How do we know that this is "mest" and not "flest"?

[Zmrzlina]

In general, mer/mest is used for amount and fler/flest for number. Knowledge is generally uncountable, thus taking mest.

[Austin211825]

A bit like less/fewer distinction in English?