English Translation
Which is your bag?
I don’t understand the meaning of this sentence.
It looks quite straightforward to me. A different way to put it would be “Mikä laukku on sinun?”.
Okay. Then the translation is wrong. It should ‘which’ instead of ‘what’.
To me, “which bag” sounds more natural. As far as I can tell, the Finnish word mikä corresponds to which, as long as the number of alternatives is larger than two or possibly three, in which case they use kumpi.