You typically won’t have to pay return shipping charges.
Yes, you need to state a reason. It could be you just don’t need or want the item and that’s perfectly acceptable.
You’ll be asked if it’s broken or the wrong item, but you’re under no obligation to answer.
Yes, any product can be returned. No matter what size or weight, it can be returned within 30 days.
Any purchases you make between November 1st and December 31st have an extended “Holiday” return period.