Rose riddle?

This riddle is floating around at my school again but no one will tell me the answer. For example, someone says, If I am a rose, and Mary is a rose, are you a rose?Or she uses another example. What is the trick?

Rose riddle?
The trick all depends on how the examples were given. It helps if they also give and example of someone who isn't a rose. Usually the trick refers to some gesture or body position (eg crossed legs or crossed arms). Be observant when they ask you and look for patterns.
Reply:May be,





Her name is Rose and her friend Mary's name is Rose Mary; she is asking whether you are also a Rose (means you also have a rose in your name) !!!
Reply:I heard a similar riddle called "who's the killer". In this riddle, whoever speaks first after the person asks "who's the killer" - it's that person. Sometimes they trick you and say "who's the killer this time" and it's that person because they said "this time".