The planet Saturn
noo.
no
yes
doesn't exisit
A planet's weight does not determine whether it can float in water. It's density is what determines that. Your question should be "Which planet's density is so small that it could float in water?"
yes
yes, because no water and food in planet mars
If we discovered water on another planet, it means that humans may be able to inhabit that planet. It would be a big break through for scientists. Another answer may be that other organisms or bacteria may be able to live on that planet, meaning there could be life on another planet but Earth.
of course! who do think writes these answers.
no of corse not wizards does not exisit
You can't. It would just evaporate