Answer:
I travel in a gaggle.
I'm light as a feather yet the strongest person can't hold me for more than a few minutes. What am I?
My voice is tender my waist is slender and I'm often invited to play. Yet wherever I go I must take my bow or else I have nothing to say.
I make you weak at the worst of all times. I keep you safe, I keep you fine. I make your hands sweat and your heart grow cold. I visit the weak, but seldom the bold. What am I?
I cannot be burned in fire or drowned in water
Why was the cook arrested?