Answer:
What is the thing which, once poured out, cannot be gathered again?
What is given but kept by the giver?
George, Helen, and Steve are drinking coffee. Bert, Karen, and Dave are drinking soda. Is Elizabeth drinking coffee or soda?
A man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?
A seed am I, three letters make my name. Take away two and I still sound the same.
What language does a billboard speak?