2. Vampires are incredibly light, since they are bloodless. They are also very strong, so are able to jump many feet into the air, climb walls, and move incredibly fast.
3. Some vampires are said to be able to control the weather, become mist or bats or wolves, put people under trances, speak telepathically.
2. Vampires are not bloodless per se (they have vitae) and all the blood in our bodies doesn't really weight that much. They are only super humanly strong when they use their discipline of potence (or vigor if you like) and moving incredibly fast is done via the discipline of celerity, not every vampire is super fast.
3. Some vampires can indeed turn to mist and bats, this is done by the gangrel discipline of protean. Telepathy is in the domain of auspex though.
(isn't it funny when you speak of supposedly imaginary creatures like you spoke of real things)