Then you need to have it replaced.
Yes it can.Yes it can.
Bad thermostat, loose water pump impeller. Does it have a electric fan? Bad head gasket?
Fuel pump is bad.
Yes, it can.
yes
replace it. when they go bad you can't fix them.
yes
Typically no but if you ran an engine long enough with a bad water pump catastrophic damage could occur to the engine to prevent it from running again.
where is the leak?
Yes, you need spark for the engine to run.
Bad tire, bent rim, warped rotors.....
Your switch on your sterring wheel colum is bad. Replace.