Since both "ask" and "find" are verbs, you need the same adverb of "easy" here (i.e. "easily") and it would apply to both, so I would rephrase it as: "English learners use italki to ask and find the answer easily" or "English learners use italki to easily ask and find the answer". {or "find answers" in general}

English language learners use italki to easily get answers for their questions. People who are learning English use italki to easily get answers for their questions. In the U.S. public education system, "English Language Learner" (ELL) is a common way of describing students who come to English-speaking schools without strong English skills. In regular conversation we would say "people who are studying English" or "people who are learning English."

Learners of English/People studying English/English students can use italki to quickly ask questions and get answers' or '..can get answers to their questions easily on italki' ('learners' is strange for me - learning is not an action - it's only used for 'learner drivers', nothing else. Now some people are using it for students, but I think it's weird)

For my opinion, To easy and easier is tautology. If you would like to say that italki make easier the process of asking and finding answers for learners, I think, you should say: For English learner asking questions and finding answers become (or have became, as you wish) (much more) easier with italki. Good luck!