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The proper chilling time depends on the type of bulb you have. For example, tulips need about 14-16 weeks of chilling, while hyacinths need about 11-14 weeks. You can look up the chilling time for whichever species you have.
https://www.gardeningknowhow.com/ornamental/bulbs/bgen/chilling-flowering-bulbs.htm

Yes, you can save the bulbs, although hyacinths typically come back better than tulips do after being forced. After the foliage turns yellow, remove the bulbs from the containers, pat them dry, and air dry them for a week. Then, dust with a fungicide if available, and store them in a paper bag surrounded by peat moss or sawdust, or hung up in pantyhose.

In spring, plant them in your garden. They probably won't flower this year since they've used up so much energy already, but the hyacinths at least will probably flower the year after.

I'm not clear on the specific type of tuber, but if it's a corm the rounded side should face up. Small bulbs, even if planted upside down will find their way to the surface. When in doubt, plant sideways.

This article has information on ferns.
https://www.gardeningknowhow.com/ornamental/foliage/ferns/taking-care-of-outdoor-ferns.htm
You can also contact the customer service from the company you purchased from to verify the variety and their specifics.

Plant the daffodils - they will be much better off in the ground - but make sure nice and deep - as people tend to plant them to close to the surface- at least 3 times the depth of the bulb. For the tulips - that is a trickey question- as a lot of animals and insect get to them in the ground,but best bet for both nice and deep in the soil. best place :)

There are several snails in Florida that attack gardens. It could be one of these:
http://entnemdept.ufl.edu/creatures/misc/gastro/terrestrial_snails.htm
http://entnemdept.ufl.edu/creatures/misc/white_garden_snail.htm

Removing them by hand is often the most effective method, but there are some other options:
https://www.gardeningknowhow.com/plant-problems/pests/insects/organic-snail-control.htm
https://www.gardeningknowhow.com/plant-problems/pests/insects/slug-snail-eggs.htm

It's getting late in the growing season in your zone for bulbs to come up this year. You can plant as many fall bulbs as you like, though! This article will tell you everything you need to know about planting bulbs:
https://www.gardeningknowhow.com/ornamental/bulbs/bgen/how-long-for-bulbs-to-grow.htm