No
Yes, it is illegal to own a rubber band gun in Singapore.
Yes it is illegal to own a gun that does not have a serial number. It is also illegal to remove the serial number off a gun.
Elastic, rubber or a rubber band can be stretched and hen returns to its own shape.
It is not illegal to own ammunition but you must have a permit to own a gun.
yes it is illegal to own a sawed off shot gun in pennsylvania...as far as i know its illegal in every state of the US
No
Yes, a rubber band will float in oil because rubber is less dense than oil. This causes the rubber band to displace a volume of oil greater than its own weight, allowing it to float on the oil's surface.
No
It is not illegal. There is no permit required to own a firearm.
Yes, a convicted felon can own and airsoft gun and/or a BB gun. It is a real gun that convicted felons cannot own, in which this would be illegal.
No, it is illegal for civilians to own a tank with a working gun in most countries.
Generally speaking, no, but it depends on what circumstances you are referring to.