<br/>"Heads or Tails":<br/><br/>Why Head<b>s</b> and not Head? And why Tail<b>s</b> and not Tail?<br/><br/>When we toss a coin we speak about one coin, no?<br/><br/><a href="http://www.coingalaxy.com/coininfo/two-headed.jpg"><a class='_ac _lb' lightbox=' '><img class='_ac _di img-fluid' style='width:0px; height:inherit; background: inherit;' data-delaysrc='' src='' /></a> </a><br/><br/>Thanks.<br/><br/><img class='emoticon' style='Width:19px;Height:19px;' data-delaysrc='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/Emoticons/87.gif' src='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/Emoticons/87.gif' alt='Emotion: speechless'/>