Total number of boats in the world?

What body of water lets boats travel from the middle of the US south to the gulf of Mexico? How can you make your dock lines more pliable? How long does the boat stay at liberty island before going to Ellis Island in New York? How much is the evinrude e2rcne worth? Who is the man invented ship? What is a device used by submarines to control density? Can you drink on a boat? What is the gas to oil ratio for a 1971 mercury 200 20 hp outboard? What happened to Fitch's steamboat business? What is the leading cause of pwc accident? What is the oil mixture for 88 horsepower Johnson? Who owns yacht named Eminence? What was the first vessel used on water? What type of boat's were used during the Battle of Midway? What does it mean if you see a buoy with the number four and a flashing red light mean? Where is the Maltese yacht? Where on the boat are HHull number? Where did submarines first built? What should an operator keep in mind when preparing a boat for Safe Towing? What is the only situation in which the duty to render assistance to another boat or boater involved in an accident applies?