TechVolatile

Kindle Fire’s PDF reader or Adobe PDF Reader itself is enough to read PDF files. But you will get a fantastic reading experience in MOBI format. There are several free or paid conversion tools are available on internet to convert PDF to MOBI. In my experience calibre - E-book management is best conversion tool. Download:  calibre - E-book management

There is different method to know own mobile number for different operator. For Grameenphone Dial: *2# For Airtel Dial: *121*6*3# For Robi Dila : *140*2*4# For Banglalink Dail: *511# For Teletalk: Write “whoami” and send to 321 [It will work even if your balance is zero] NB: all are free. No charge is applicable to know you number and it will work even if your balance is zero.