If you see an Italian sentence with prestare referring to an OBJECT, it is most definitely not "to give", it is "to loan". Prestare can mean "to give" when the thing you are giving is something like your time, assistance or service.
DL shows the multiple translations/definitions of a word for teaching purposes. That does not mean that every translation option is appropriate for the given exercise.
If there was an English sentence "I straighten my hair with a comb" and DL showed you 2 definitions for "comb" in another language and one of them was "the soft part on the top of a chickens head", would you attempt to write the equivalent of "I straighten my hair with a chickens head"?
I get it, and your explanation is excellent. DL loses that granularity of helping out re: verb-object and verb-non-tangible-thing. That said, given the similarity between give/lend, I'd say it's more akin to getting a sentence like "This is his favorite film" and choosing between "This is his favorite movie" and "This is his favorite photography material". :)
I did. My ?? is Why is Duo L. giving us the option/definitions of give as a choice?? But then Not letting us use it ?? Same Question SL13 had? It's confusing to tell is it's one of the words we can use for give.. then mark it Wrong. And besides... How is it arbitrarily Wrong in this sentence?? Perhaps his/her uncle DID give them his old computer??? So why does Duo L say No, even if it were/might have been used in that context? Not sure what your First language is... and hope this confusion in English isn't messing you up. If you're fluent in Italian, you probably think we're nuts for being confused. p.s. Some relatives are generous with electronic devices or gifts. So we just want to know why we are not allowed to go in that venue?
You are taking things out of context.. 'to give' is used more in the context of 'to give someone one's attention or to give someone a helping hand' instead of 'to loan someone one's stuff'. I suggest you to refer to a dictionary for things like this rather than just taking bits of information at their face value.