What do you call something ?
‘What’ is .an interrogative pronoun. So the answer will be a noun referring to what; as:
What do call something that is made in Poland?
A: a Polish toy, a Polish car.
how do you call something?
‘How’ is an interrogative adverb. So it means to dwscribe the way of your action; as:
How do you call your dog?
A: I whistle and then offer him something to eat.
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