Answer:
There are two sisters: one gives birth to the other and she, in turn, gives birth to the first. Who are the two sisters?
An archaeologist unearths a coin bearing the inscription "57BC". How does he instantly know that it's a forgery?
The answer I give is yes, but what I mean is no. What was the question?
You have a bucket full with 5 gallons of water. What can you ADD to it in order to make it 3 gallons?
An archaeologist digs up two perfectly preserved bodies. He immediately identifies them as Adam and Eve. How can he tell they are Adam and Eve?
What is always coming but never arrives?