Answer:
When it is alive we sing, when it is dead we clap our hands. What is it?
What word is a plural, but when you add an "S" to the end, it becomes singular?
who do you think you know but sometimes you don't
What binds two people yet touches only one?
What an fill a room but takes up no space?
People take me on walks and I run and have fun. What am I?