Do planes have cameras in the cabin and/or lavatory?  

– Bar, Knoxville, Tennessee

Some airplanes have cameras in the cabin near the forward galley, but none have cameras in the toilets. 

How does an airplane take off?

– Anonymous, Zimbabwe

The airplane accelerates until a point where the air flowing over the wing can create enough lift that exceeds the weight of the airplane and it begins to climb. 

The aerodynamics are a bit more complex, but this is the simple explanation.

How hard is it for a pilot to go from control column to the side stick? Is it easier to control the aircraft with the side stick?

Mike H., Madison, Alabama

I did not find it hard at all. The side stick was very intuitive and easy to use.