Answer:
With four oars it swims but it is always at home. Its back is like armor, tougher than chrome. What is it?
Even if my life is taken eight still remain.
Who is it that rows quickly with four oars but never comes out under his own roof?
They don't forget.
To you, rude would I never be, Though I flag my tongue for all to see.
The warmer I am the fresher I am.