Usaly
It depends on where the engines are if its on the wings then no
At least one(!), the biggest planes have six.
At least one(!), the biggest planes have six.
Yes, jets are planes but jets are mostly known as supersonic planes.
Smaller planes have piston engines, but bigger planes like the Boeing 717-777 and other planes have turbine engines
No Fedex does not have passenger planes. Although their cargo planes do have a few passenger seats, these are used only for transporting Fedex employees and/or flight crews.
In the 1940's, Boeing's naming convention at the time was to have the 300-400 series reserved for military planes, 500 series for turbine engines, 600 series for rockets and missiles, and 700 series for jet passenger planes. It was later decided for marketing purposes that any planes with the numerical designation that starts and ends with a "7" is reserved for passenger planes. So, this is why the 747 is named this way.
It depends if you mean private planes or commercial or passenger planes. For passenger planes I think Air Canada would probably buy planes though I am not sure and I am sure there would be others.
its engines
You have to have at least one. (If you don't have an engine, your are classified as a glider.) The largest planes typically run 4 or 6 jet engines. Most planes have 1,2,3,4 or 6 engines. Very large aircraft sometimes have more. There are propeller planes, turbo prop and jet engines. There are also VTOL Vertical TakeOff and Landing planes, such as the Harrier and Osprey
Planes powered by internal combustion engines came first.
The engines propel the airplanes.