There 8 proper planets in our solar system, and several planetoids, including Pluto. Any other planet-like world around other stars are called exoplanets.
Any planets that have plates
Planets that used to be planets but aren't any more. Example: Pluto
No. Also, if there is any life on any of the planets, it would not be alien; it would be native.
Mercury is a planet itself, and it does not have any planets to it.
Pluto does not interact with any planets.
Yes.
Mercury and Venus
No planets speak at all, and there are no people to speak in any language on any planet except Earth, at least not in OUR solar system.
No two planets share the same moon.
Yes we can! And we have! Several planets and moons have water on them!
no light is not emitted by any planet but light ,reflected by many planets comes to the earth
Mercury and Venus are the only planets that can transit the Sun, from where I am.