We are not able to send complete folders to Gmail. There is another way to send them. You can wrap them in a zip and then send the zip file.
Complete folders cannot be sent directly through Gmail. Only files can be sent as attachments. You can compress it into a zip file and then can send it.
No, you cannot send a physical check through Gmail.
You cannot send an SMS using Gmail. Gmail is for sending mails and chats. You can however send a mail to the person in their mailbox.
Yes, it is possible to send it. It is because Gmail is able to send data to different services too. Gmail can send an email to Live too.
You cannot send a friend request on Gmail. Instead you can send a chat request. It means the person is inviting you to chat.
You cannot send SMS to Gmail service. Gmail is a pure Mailing service that deals with sending mails. These mails deal with private or public information.
You cannot send messages to Gmail without an account. However you need not to get a Gmail account only. You can also send it from yahoo mail like services.
No, you cannot send personalized mail from Facebook. However various apps can send their mails. They are system generated mails.
SMS on mobile devices cannot be sent via Gmail. It only deals in the mailing service. Gmail is free whereas SMS charges.
You cannot send SMS through Gmail Mobile. There are other ways to show a notification. It is the hangouts that can be used for that.
You can send a message via the Hangouts. Hangouts is the Instant Messaging service of Gmail. It allows sending instant messages which can be received over phones too.
You can upload pictures from I phone to Gmail account. You have to send it as an attachment. It is stored then in your Google Account.