Yes
No, extension cords are not allowed on planes due to safety regulations.
Yes, CDs are allowed on planes as part of carry-on luggage.
Yes, electric lighters are allowed on planes in carry-on luggage, but not in checked baggage.
No, razor blades are not allowed in carry-on luggage on planes.
no smoking is allowed on public planes, national and international
No, poppers are not allowed on planes as they are considered a hazardous material and can pose a safety risk during flight.
No.
Yes.
if denture powder is powder than it is probly not allowed on planes cuz it might look suspitious.
Yes, condoms are allowed on planes. It is recommended to pack them in your carry-on luggage for easy access during your travels.
Take as many as you like.,!!!! Passenger airflights are limited to the weight/mass. Over the weight limit then you start to pay for the extra weight. e.g. You can have say 2 suitcases each of 20 kgs. This gives a total weight of 40 kgs. However, you can have 6 suitcases , each of say 6 kgs.. This would give a total weight of 36 kgs. So the mass is less. Airlines are not worried about the number of cases you have. It is the TOTAL weight the aircraft has to life into the air. Pilot's also have to take into consideration the number of passengers, ( 8 passengers . approximates to 1 ton. A 'Jumbo' Jet carries about 500 passengers; this would approximate to 65 tons of human beings. Then there is several hundreds of tons of fuel. Food , water, etc., Aircraft are designed to lift a total maximum weight.
Yes they are allowed. So their is nothing wrong with it.