It would depend on your exact policy. You would have to ask them, not us.
They cover just about everything if you have the right policy
Yes.
No
All homeowners policies cover damage caused by lightning.
It should look at the Allstate mayhem raccoon comercial on you-tube.
Their television commercials give the impression that they do, or at least on some of their policy offerings.
No, your homeowners insurance does not cover AC maintenance issues. however, depending on the type of policy you purchased, it may cover resulting structural damage after you have completed the necessary repairs to your AC system.
"Allstate Insurance Company does offer coverage for motorcycles, covering both property damage and bodily injury. Protection policies can vary from state to state depending on state laws."
They would not cover the shower, but if the leak was sudden and accidental, they would cover the water damage only. This includes all plumbing appliance.
Damage must be due to a covered cause for the damage to be claimed on your homeowners insurance. I cannot think of any way damage to a sewer could be from a covered cause.
According to AnswerBag.com, it covers these things in addition to basic homeowners' insurance: "falling objects, weight of snow, sleet and ice, damage to water heating systems, volcanic eruption, damage from plumbing or appliances, freezing of plumbing or appliances and damage from artificially generated currents".
There is a great number of variables for this. You need to contact your specific insurance agency for details.