it takes 80 days to 110 days
My guess would be around 5 days, nonstop, on a cruise. That's not an exact estimate, since I've only been on a cruise ship once.
This is a difficult question, as cruise ships have different top speeds, and what route would the ship take? Can it fit through the Panama Canal? Are you asking about the length of a World Cruise which includes stops at many ports, or simply how long would it take a ship to travel from New York, go around the world, and get back to New York? World Cruises are typically in the neighborhood of 80 - 110 days or even longer, depending on if it truly starts and stops at the same port, and the number and length of port calls. Some World cruises start on the West Coast of the U.S. and end on the East Coast. Others start in New York and end in Southampton. Others do go round-trip from a particular port. Ask a travel agent that specializes in cruise what the current World Cruise itineraries are to get a better idea.
This is a difficult question, as cruise ships have different top speeds, and what route would the ship take? Can it fit through the Panama Canal? Are you asking about the length of a World Cruise which includes stops at many ports, or simply how long would it take a ship to travel from New York, go around the world, and get back to New York? World Cruises are typically in the neighborhood of 80 - 110 days or even longer, depending on if it truly starts and stops at the same port, and the number and length of port calls. Some World cruises start on the West Coast of the U.S. and end on the East Coast. Others start in New York and end in Southampton. Others do go round-trip from a particular port. Ask a travel agent that specializes in cruise what the current World Cruise itineraries are to get a better idea.
a lot of hours
Depends on the vessel. But why would you want to?
The closest islands that are a part of Polynesia are the Hawai'ian Islands, and it would take about 1-2 weeks to cruise to them from California at cruise ship speeds.
Orlando is an inland city, so one would typically cruise to and from Port Canaveral.
5.678 seconds
15 seconds
My cruise ship was about 300 yards long
From what I have checked on the internet for you they are around $1500 for some of the Norwegian cruises.