asking for: "would you like?"

Laughing Larry said:

Hi,
how can I ask ppl what they'd like? say: "would you like water" or "would you like the bill?"
"mizu wa suki desu ka?" (it sounds to me as /do you like water/ ,thouhg)
maybe I should go something like asking persmission to bring something /water,bill/ is that right??
thanks

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Elizabeth said:

Okanjou de yoroshii deshouka? Would you like the bill?

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