There is one arithmetic mean and one geometric mean to a set of numbers.
No. But there can be more than one data point which has the same value as the mean for the set of numbers. Or there can be none that take the mean value.
All it means that there were more than one observations which had the same value.
Value
A variable can not hold more than one value at any given moment in time. It would have only one. If you wanted more than one value, you would have to make the variable an array.
True
improper fraction
You can not insure a vehicle for more than its value so more than one insurance policy would be a waste of money.
yes. when there is more than one object
For any set of numbers, there can only be one mean, so it is not an issue that can arise. If you are working with more than one set of figures, then you can have more than one mean. What you do then is really dependent on what it is that you want to do with them, so there is no single answer to the question.
Potential to have more than one value for an attribute
No.
An improper fraction.