Yes
no
It won't run.
What you will need is a 240 to 120 step down transformer. An adapter might work but it depends on what the current draw of the neon sign is at 120 volts.
You need a step-up transformer, to go from 110 to 220-240 volts. Then a 110 volt supply can operate 240 volt equipment.
France uses 220-240 volts for their electrical system.
To convert a 240 volt power source to a 120 volt power source using a 240 volt to 120 volt adapter, simply plug the adapter into the 240 volt outlet and then plug your 120 volt device into the adapter. The adapter will step down the voltage from 240 volts to 120 volts, allowing you to safely power your device. Make sure the adapter is rated for the appropriate wattage to avoid damaging your device.
No, a 240 volt device runs on 240, and a 120 volt device runs on 120. Attempting to run a device on incompatible voltage results in damage.
No, unless the motor was wound for dual voltage operation, which it will state on the motor nameplate, a 110 volt motor run on 240 volts will be damaged.
No, a 240 volt string of Christmas lights is designed to be used with a 240 volt socket. Plugging it into a 110 volt socket may damage the lights and pose a safety hazard. Be sure to always use lights with the correct voltage rating.
No, it won't get enough power and won't work.
If you mean 110/240, yes, but there may be a hidden switch to switch it to 240 volt mode. Check the manual.
The pin configuration of the 240 volt receptacle is different from a 120 volt pin configuration. This is a safety factor to prevent the wrong voltage being applied to the wrong devices.