Remember that most words and sentences can have MANY translations. The most likely translation for this sentence is "Each (item) gets easier." The most obvious context to me would be something like, "Ich habe die Änderungen zu den Tests gesehen." = I saw the changes to the tests. "Na und?" = And? "Jeder wird leichter." = Each one gets easier.
Then again, you could say, "Auf dem Mond wird jeder leichter." (Everyone gets lighter on the moon.)
I don't think so. As far as I know, to say that a woman is "leichter" in German means that she is lighter (she lost weight).
The problem here is that "Jeder" means both "everyone" and "each (thing)," while "leichter" means both "easier" and "lighter".
"Jeder wird leichter" therefore have a myriad of different meanings: Everyone gets lighter, Each one gets lighter, Each one gets easier (But not "Everyone gets easier," because the sexual connotation in the English version does not carry over. To say that someone is "easy" in German you would have to say that they are "leicht zu haben" or "easy to have... AFAIK).
Because of Duolingo's context-independent translations, awkward or seemingly meaningless translations can easily occur, and you run into strange constructions like, "Everyone gets easier". It might be better to think of it as "Each one gets easier" .
Strange because I have been taught in my german language class (by polish teacher) that saying 'leicht' to a woman dominantly means she is easy to get. As in english, light and heavy refer to character, fat and thin to appearance. In any case I wouldn't risk using them interchangeably in German either.
It's being pronounced properly. Remember that German does not have the "dark L" sound, which is the L in the back of the throat that you hear in the English words milk, fall, walk, etc. English has two L sounds, and the other one (the "clear L") is pronounced with the tip of your tongue touching just behind your teeth, as in the words lip, long, last, etc. And some words contain both sounds. The word "label," for instance, starts with a clear L and ends with a dark L.
This is further complicated by the fact that in some American dialects, the letter L is NEVER pronounced with the tip of the tongue (clear).
The German L is ALWAYS pronounced with the tip of the tongue. So if you think you hear that "L in the back of the throat" sound, it's most likely an R.
Hope that helps.
leichter = lighter (opposite of heavier [weight]) OR leichter = easier (opposite of more difficult)
In German you don't say that things are "easy" or "hard," you say that they are "light" (leicht) or "heavy" (schwer). They have both idiomatic and literal meanings.
In terms of color, heller = lighter (as in brighter, opposite of darker)
::edit:: Oh, and "light" as in "jovial/merry" is "heiter". With "more jovial" being "heiterer". Words used idiomatically like this are often not directly translatable. I would recommend looking at the website http://www.dict.cc/ and reading all of the entries under "leicht" and "heiter".