It will depend on your companies rules. HR can tell you your companies policy. Many allow the employee to use the air-miles as a perk, compensation for having to travel.
Yes, as long as you are using the same company.
No. Check to see what the policy your company has for the use of a work computer. I would be careful what goes on there stays there
When you are an owner of the business and/or your company policy does not prohibit personal use of a computer, and the personal use of the computer is not at the expense of company work, and your use of the computer does not violate any laws or regulations that may put the company at risk legally.
It's unethical because it is stealing.
No, the company cannot drive! If the company wants you to use your personal car for company business, they should provide insurance for that use.
Ethical use of the government email system is use that is agreed upon as acceptable. For example, government employees are often asked not to use their work email for personal business so it would be seen as unethical to not follow this policy. An example of unethical and likely illegal behavior would be hacking into steal personal data.
Keep a log of miles driven for personal use vs. total miles.
EMBEZZLEMENT
ONLY if permitted by the company concerned ! Some businesses forbid the use of their equipment being used for personal communications.
It is personal choice. All the rich people don't use one single insurance company.
There is no set average a company pays out for mileage of a personal use car. The amount a company pays out is an agreement defined when a job is offered. The company has their own policy. It is a uncharted standard.
Yes. Even if you own the company. It is only acceptable if authorised and accounted properly for taxation.