There are over three dozen strains of HPV that could cause genital warts. There are several strains of HPV that could cause warts on the hands or the... For detail, click here
There were doctors getting warts in their noses after surgically removing some genital warts. I think it's safe to say it can spread to most parts of the your body's skin.
Yes you can get warts on the hand. Soak wart in Apple Cider vinegar then cover with bandaid or duck tape. It will look gross but will come off