Yes.
The common jellyfish can go up to one full month without eating, or 30 days. A jellyfish typically has a life span of one year.
Both animals are capable of eating turtles.
Many animals eat jellyfish. Sea turtles enjoy a nice jellyfish, and the stings don't bother them a bit. Other animals, like sea slugs, eat the jellyfish but don't digest the stinging cells - instead, they use them as part of their own defense. Having a sting doesn't always keep you from getting eaten.
No, they cannot survive without eating. All animals need to eat.
Yes.
There are a few desert animals in the Americas that would even be capable of eating a human and attacks by these are rare - wolves, jaguars, cougars.
Feeding habits for most jellyfish is floating around and eating what comes along. However, the box jellyfish is able to hunt for its food. Jellyfish are able to adapt to various depths of water, from shallow to deep.
Eat. They are always Eating.
Yes a jellyfish eating animal is a carnivore as the jellyfish is a living thing
no they do not they on partake in food eating
by stinging and eating people
Depends on your definition. Meat includes muscle and jellyfish are made up of some muscle so it's plausible. However I do not recommend eating jellyfish.