YOU ARE READING Riddle me this... Random a collection of riddles waiting to be solved #brainteaser #classics #humor #random #riddles #solving #think RIDDLE : 1 168 5 11 by Albert-Frankenstein by Albert-Frankenstein Follow Share Post to Your Profile Share via Email Report Story Send Send to Friend Share Post to Your Profile Share via Email Report Story What instrument can you play, you can hear but cannot touch or see?