Unfortunately some of these comments are really old. I think this is the case and it wasn't well-known months ago where to suggest changes. It's much easier now.
I suggest that if you aren't sure if you are correct and want to run it by us please do so with the understanding that once you get confirmation or other ideas that you than send your comments to Support. I often have to check here first because just as often I'm wrong. My fellow students have helped set me straight many many times.
I keep suggesting to duolingo to give us hints before we answer the statement. Does everyone think it would help to learn before we get it wrong? Duolingo is missing a great opportunity here. And all we get is hard knocks. I am frustrated with 3 4 and 5 times getting it wrong until we figure what doulingo is attempting to teach.
Maybe that it is uncommon is exactly the reason why it better sticks to your brain? Because this way you are forced to really pay attention and you can not solve Duolingo on autopilot... So mayyyybe just mayyyyybe it really makes a lot of sense and you are just too ignorant to see it...
I tried "What shall I try?" assuming that the person is asking someone else for advice, but either I misunderstood or DL just doesn't like "shall". I'm never really sure if I should be translating the WORDS into a meaningless sentence or the IDEA of the original into a natural sentence, even if we technically haven't covered some things yet.
It's fairly strict, you have to show you understand all the words. You need to translate the sentence as it is, duolingo won't accept something that means roughly the same. For example, if is says "al hotel" you have to answer with "to the hotel" and "to a hotel" is wrong. This doesn't mean you have to be completely word for word literal - if you translated "me gusta" as "it pleases me" you would be literally correct but the meaning is not correct. The problem with using "shall" (or "will", or "should", etc) in this sentence is, although the different options might be used in the same context to mean roughly the same thing the tense is different. "Shall" is the future tense and the Spanish here is in the present tense and you need to show you recognise that.
I'm not sure how well this will answer you're question. The two are pretty much the same except that "intentar" is more informal and "tratar" is more formal. But, tratar is always followed by the preposition "de". For example, "trato de explicar la diferencia a usted." Hope this helps.
Stagefrog posted a great question, and you gave a helpful answer. Just want to add that a lot of people confuse INTENTAR with the English meaning "to intend," instead of the correct meaning TO TRY. To intend (in the English sense) is best translated with the idiom tener la intención. But the Duolingo sentence above that we are all discussing is sort of silly and useless. It has been posted for two years now. Time to pull it from the stack, Luis.
Sorry. intentar = to try, not to intend. Tener la intención = to intend. A sort of false cognate, if you will. Intentar is used a lot (outside of Duolingo--in the real world in which people speak Spanish), so best we all remember it correctly. This sentence, however, is a little goofy. It was posted two years back. Time to kill it.
Yes, it's incorrect. "My intent" is a noun, the sentence has the verb "intentar". It is a little confusing because the first person present of intentar is "intento", which is spelled exactly the same as the noun "el intento". The clue to which word it is, is the "yo" - it must be "I try" or "I attempt". Your sentence in Spanish would be "¿cuál es mi intento?".
I have read many comments here and I think....
It seems similar to the common expression asking oneself or someone else "What do I do (now!, next)?", "What shall I do?".
I'd say "What shall I attempt?" for this "Qué intento yo?" Somehow "What do I attempt?" sounds a little better than Duo's current primary translation "What do I try?"