Alright. (I searched and hopefully it wasn't already made.)
Hao2Plaez?
You can say: Why is, why do, why are, and why was.
The first person would ask a question like: Why is the cake a lie?
Then the second person would say: Because it was hidden.
Then the third person asks: Why was it hidden?
And so on. So I'll start:
Why are fruits different colors? (A question I just love asking.)