We use “any” with uncountable nouns and plural countable nouns (Not with singular countable nouns). Compare: ‘Do you have any money?’ (Money is an uncountable noun). ‘Do you have any fifty-cent coins?’ (Coin is a plural countable noun). ‘Do you have a fifty-cent coin?’ (Coin is a singular countable noun).
The general rule is that we use "any" in negative sentences and questions. For example: ‘I don't have any ideas.’
‘Do you have any ideas?’
When we use "any" in a question, we don’t restrain the choice.
For example: ‘Would you like anything to drink?’(It includes a whole range of things to drink.)
‘Do you have any questions?’ (You can ask me anything you like!)
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