Answer:
I have a lot to say but can't be heard because I can't speak one single word. What am I?
When it comes to me, you go on red and stop on green. What am I?
If you drop me I'm sure to crack. But give me a smile and I'll always smile back.
I have a head tail but no arms and legs.
Die without me, never thank me. Walk right through me, never feel me. What am I?
The answer I give is yes, but what I mean is no. What was the question?