Partially-heard words. (or phrases?)

Are there any natlangs in which, by hearing the last part of a word, you can
get an idea how long the first (unheard) part was?

Are there any natlangs in which, by hearing the first part of a word, you can
get an idea how long the last (unheard) part was?

(If "word" isn't the appropriate concept, substitute "phrase".
Or, substitute "morpheme" or "syllable" or whatever applies in the natlang in
question.)

Same two questions for conlangs.

Are there any nat- or con-langs for which _both_ are true?

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(I was inspired to wonder by reading of languages whose words' primary stress
was on the first or second syllable depending on whether the word had evenly
many syllables or oddly many syllables.)

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