If you want to remove the ads from your website you should pay the small yearly free Rs.2500/ per year
There is nothing free, You can create the website and start using it as many days you want to test it.
Yes you can
Website will be activate instantly.
10, 20 or more you can create as many emails you want for your business propose, you can't use it to send spam mails or for free email website like gmail or yahoo
Jusr Rs.2500/ per year, Including hosting and business emails