Answer:
I am the building with the most number of stories. What am I?
My first two letters say my name. My last letter asks a question. What I embrace I destroy.
Part carbon part water I am poison to the fishes. Many falsely claim my name I am the pause that refreshes.
I have a foot but no leg. What am I?
I can wake you up in the morning but I require no electricity or winding. What am I?
Give it food and it will live, give it water and it will die.