No, Twitter is a free service.
I don't think so.
Unless you have a mobile phone plan that supports Twitter, then yes, Twitter will charge you money.
No. There is no charge at all Twitter is free
The website Twitter does not charge anything for you to use Twitter from your cell phone. However, your cell phone provider may. You could get charged for sending or receiving text messages, or using the web from your phone.
Joining Twitter is free. As for mobile charges, it depends on your provider and your mobile plan. You should contact your provider to find out what you are and aren't charged for.
No a Twitter account is free just like Facebook and MySpace
Twitter does not use apps or games like Facebook does, so unfortunately you can NOT use Farmville on Twitter.
Anyone can use it..... unless the twitter is not blocked in your country.
Depends on how much you decide to use Twitter.
There are no age requirements to have a Twitter account or use a Twitter account.
Unless you have a data plan you will be charged.
A twitter feed is something they use on twitter to keep track of what you've been doing on twitter