Do all boats have a motor?

Is a orlop deck part of a ship? In which situation is it OK to break the Navigation Rules? How does a submarine adjust its depth? What type of requires navigation lights? What is the meaning of two long blasts on a ships whistle? What year is a 5 hp sea king outboard motor with Model CED 50506A Serial 18 X 104693? Is Ted Williams 7hp outboard motor air cooled? What line do you cast off last if the current is holding the boat against the dock? Where is the water heater for a 1979 Hallmark mobile home? What is a cylindrical buoy? Where can you find the maximum horsepower of your boat? How do you lower a lifeboat? What is a flag flown by a cruise ship called? How fast can an 8 foot sailboat travel? How likely are paddlers in small crafts to drown when compared to operators in other vessels? At what pont should you open all windows and hatches while fueling? What word means to load a ship? Must you do to maintain steerage on a personal watercraft? What color is a marker that indicates safe water on all sides? Where do you hook a water hose to on a kawasaki jet-ski?