Answer:
I repeat only the last word you say. The more I repeat, the softer I got. I cannot be seen but can be heard. What am I?
You can catch me but cannot throw me. What am I?
I am an odd number that become even when beheaded.
I am an instrument capable of making numerous sounds but cannot be touched or seen. What am I?
I sleep by day, I fly by night. I have no feathers to aid my flight. What am I?
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.