My housemate use my mini bucket that i use to soak and clean my underwears/panties and used it in kitchen and put food in it w/o me knowing. i have hpv and also warts. can hpv transmit into her mouth this way? how long hpv virus survive on object?

No worries: A modern dishwasher with its heat drying cycle should take care of issues like that. Soaps and detergents without a dishwasher should be fine too. Washing a few containers wisely uses water, energy, and soaps; but having multiple containers means owning more plastic, glass, or metal containers. Neither decision is perfect, so it's a matter of personal choice and seeing the world's "big picture."