Who knows the answer of this Riddle?
<em style="box-sizing: inherit; font-family: latoregular, Helvetica, Arial, sans-serif; -webkit-tap-highlight-color: transparent; line-height: inherit; color: rgb(111, 111, 111); font-size: 16px;">
Voiceless it cries
Wingless flutters
Toothless bites
Mouth-less mutters.</em>