Answer:
Split me in half, and you get me and another me. What word am I?
Thanks for such treasures as Mariachis, enchiladas and habanero!
An appropriately loud response to fear, excitement, or your team scoring.
If you can get this professional's attention you can get where you need to go for a price.
There is one in every corner and two in every room.
I am a room that has a roof but no walls. What am I?