Answer:
I bring light to a dark world. In a current I travel and through tunnels I am hurled. Touch me and I'll kill you. What am I?
What's the capital of France?
I'm tall when I'm young and I'm short when I'm old. What am I?
You bury me when Iβm alive and dig me up when Iβm dead. What am I?
Walk on the living, they donβt even mumble. Walk on the dead, they mutter and grumble. What are they?
The answer I give is yes, but what I mean is no. What was the question?