Yes you can make sub-folders within a Label. A label is a folder which can be used for categorization. You can create a label within a label in settings.
Yes you can.
Yes you can make folders in Gmail to save. These folders are called as Labels. You can prioritize your emails in these labels.
Gmail does not use a folder system. Instead they use a system called labels and you can apply multiple labels to one email. To create a label go to "settings" and click on the "labels" tab. Create a name for the label. To apply a label to an email click the checkbox for the email and click on "move to". Click on the label name and the label will be applied to the email.
You have to attain a minimum age to make a Gmail. The age of creation of Gmail is 13 years. You can easily create a account after that.
On Gmail you can make a little face that you prefer. Gmail supports a number of emoticons which are used to express different feelings.
You can make a Gmail account for yourself easily. You just have to register using the Gmail information. You have to also agree to the terms and conditions.
You cannot make audio call on Gmail. However video calls are possible in Hangouts. It is the latest IM of Gmail service.
You can see the Gmail messenger inside the Gmail account. You have to be a part of Gmail to see it. To be able to see it, you have to enter your details.
Label holders are used for exactly what they sound like; to hold labels! They make things easier to identify such as files, folders, boxes, and other items around the office.
NO.
NO.
You can make forms via Google forms. It is not included inside Gmail service. However, the same credentials goes into form as gmail.
You cannot make a call on Gmail. Gmail is a pure mailing and chatting service.It could be done via other calling applications.