Answer:
I can swim but never get wet. I can run but never get tired. I follow you everywhere but never say a word.
At night I come without being fetched, and by day I am lost without being stolen. What am I?
I am found on Mercury Venus Earth and Mars but not on Jupiter or Saturn. What am I?
When I come in from sea to shore twenty paces you'll see No less no more.
I am often sold by children entrepreneurs in summer time
Both a currency and an antlered male. What is it?