Answer:
Very helpful if you intend to go gently down a river.
Of these everyone has ten, part of two wholes at the arms end. What are they?
The part of the bird, that is not in the sky, Which can swim in the ocean and always stay dry. What is it?
I occur twice in eternity. And I'm always within sight.
It's in your hand though you cannot feel it. Only you and time can reveal it.
How did the farmer find his wife?