Answer:
What surrounds the world, yet dwells within a thimble?
A great mysterious place that the bold have been known to journey into.
A mile from end to end, yet as close to as a friend. A precious commodity, freely given. Seen on the dead and on the living. Found on the rich, poor, short and tall, but shared among children most of all.
Take one out and scratch my head, I am now black but once was red.
Sometimes black, sometimes white, I have veins but no blood
what is a duck that is in Starbucks?