The correct spelling is "puzzles".
The plural possessive is puzzles'.
The plural way to spell studio is studios.
The plural is resources.
The plural is cantaloupes.
The plural is hooves.
The plural is cherries.
The plural is roses.
The plural is "emeralds."
plural
The plural is bridges.
The plural is "recesses".
The plural of "roar" is "roars".