Punctuation for multiple questions in one sentence

You needn't use it each time. This sentence is perfectly acceptable:

Is there anyone who can read, understand, and translate it?

When phrased in that manner, it's understood that all the verbs refer to it .

As aside, there is some redundancy in your sentence: If someone can translate it, they can certainly read and understand it, although sometimes building up the question in the way you have is done for dramatic effect.

Do you mean to say:

Is there anyone who can read, and perhaps also understand, or even translate it?

'Is there anyone who can read it ? Understand it ? Translate it ?

This is an emphatic way of conveying the questions. It would be used in speech if the speaker was stressing the lack of clarity of the document or drawing attention to the obscurity of the text of the document.

It is a common technique in public speaking. And a very effective one.

It would normally be accompanied with hand gestures to further drive home the fact of the difficulty represented by the troublesome document. The speaker would look round the audience, with raised eyebrows, making dramatic gestures as a means of visually pronouncing each question mark.

Stirring stuff.

When written, there is the same effect on paper.