What is the minimum age to operate a boat-unsupervised?

You are standing watch at night as the Officer of the Deck (OOD) on board a ship at anchor as a small boat approaches. You call out and ldquoBoat ahoy! and and the boat and coxswain replies an? Who invented the first steamboats? Who invented the first flat boat? How many days on cruise ship from sanfrancisco to Hawaii? Who makes John Deere boots? What is the proper oil to gas ratio ratio for a 110 horsepower evinrude outboard motor? When is a manual bilge pump or bailer required on a boat? How long did it take to get from England to America in the late 1800s by boat? What is the weight of a 225 hp v6 Johnson outboard motor? What age can you operate a personal water craft in Georgia? In a 225 mercury outboard Can a ecu cause a motor to lean out on one cylinder and seize a piston? You have a 22 ft jet boat powered by a 383 vortec stroker engine It has under 200 hrs use and consumes 1 liter of oil every ten hrs Is this normal? How do you make a pedal boat? How long would it take to travel by boat from Germany to Australia? Do you need to have a boating license to drive a boat in New Hampshire? Why was the newtsuit invented? What amount must damage exceed to report a boating accident report in Oregon? Do jet ski have titles in Ma? According to the navigation rules what is the giveaway vessel responsibility? What type of lever is a boat?