Yes, but not your normal garden snail. A snail dish is call escargot and is a snail that is prepared with garlic and butter. The snails used in these dishes doesn't come from the garden but is fed oatmeal to clean them out and then they are removed from the shell, boiled, and put back into the shell for serving.
snail and slugs eat garden debris
The snail kite of Florida swamps does.
No
Yes, bettas may eat snail eggs as they are carnivorous and may consume small invertebrates like snail eggs.
NO
Slugs
No toads don't eat snail shells in fact it's quite bad for them.
If the snail had wings and could fly like a pig then yes it could eat dragonflies.
yes you do
An Elephant Snail eats algae such as microscopic seaweed.
only if their hungry and its sunny outside
Yes, betta fish may eat snail eggs as they are carnivorous and may consume small invertebrates like snail eggs.