Answer:
I have a shell and move very slowly but I don't live in the sea. What am I?
With four oars it swims but it is always at home. Its back is like armor, tougher than chrome. What is it?
Who is it that rows quickly with four oars but never comes out under his own roof?
I'm not a pet with long floppy ears I just share their name when a ship disappears. What am I?
In all the world, none can compare, to this tiny weaver, his deadly cloth so silky and fair.
I am free the first time and second time but the third time is going to cost you money.