NO, unless you get a converter that converts 220 to 110.
no.
No, that is a good use for for that plug.
Power is multiplication of voltage and current. You need to know the load current drawing to establish the power. It is a bad idea to use 230 v adapter in 120 volts outlet
No.
Check the wattage of the device that plugs into the adapter. If the device's wattage is lower that 25 watts then the answer is yes. If the device's wattage is higher that 25 watts then the answer is no.
You will burn up your appliance!!!!!
The larger of the two is neutral, smaller is hot.
Absoluteyl not.
Don't be stupid. No.
Don't!
yes. but DO NOT do it the other way.
Off hand no but your explanations are not clear as to who is doing what to whom,,