¿Cuál o Qué?
I would think that one should use “cuál” when asking about what they will order from a menu, since there is a limited set of choices, but apparently it’s “qué”? “Qué va a ordenar?”
Igualmente, I find it a little confusing that, ¿Cual será la temperatura mañana?” is a sentence, since technically there are infinite possibilities for what the temperature will be.
I’m mostly processing this “out loud” but if you speak español or know it well, I’m glad to hear your tips.