Compare the first and second ones to ferns in the Pteris genus. Third one looks bad and you might have to wait for new fronds (hopefully) before you can id it.

Try searching for pages on Tropical ferns and see if you find better information on what they might be.

Third one looks like a kangaroo paw fern. I'm not entirely sure though as I've seen two things called kangaroo paws, which have similar, fuzzy... ropey-looking rhizomes, but the foliage is sort of different.

I like Pteris ferns. I got a pteris mayii from lowes off the distressed plant rack for like... practically nothing. It had some scales on it, but it was mostly just a case of needing pruning and better light. It's looking sort of dead again right now, but it's been coming back again slowly.