Answer:
George, Helen, and Steve are drinking coffee. Bert, Karen, and Dave are drinking soda. Is Elizabeth drinking coffee or soda?
What has 4 legs in the morning, 2 legs in the evening and 3 legs in the night?
You’ll have me at night and if you remove the first letter I denote the top, such as on a train
A precious stone, as clear as diamond. Seek it out while the sun's near the horizon. Though you can walk on water with its power, try to keep it, and it'll vanish in an hour.
My first is a body of water. My second is me. My third came before. My fourth before all three. My fifth sounds like my first. My sixth is in a lake. Put all six together to make an animal that will keep you awake.
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.