Can I use my own calculator in GRE?

You are permitted to retake GRE every 21 days. With a limit of up to five attempts within any continuous 12 months period. 

Exam is available year round. You have flexibility to choose a new date.

The GRE test center provides it. You must return all sheets before leaving. You can not bring your own pens or paper into the room. So, keep these things in mind.

No. The shorter GRE format (1 hour 58 minutes) has no scheduled breaks. Leaving the room for any reason will not stop your exam timer. However, you can have water or use washroom but timer will not stop.

Yes. Use "Find Test Centres" tool on official ETS website. Enter your city name to see live dates.

Then select the locations you want. At last complete the payment by Credit/debit card or UPI.

Yes. You can choose the GRE at Home option. At the time of registration. It is the same General Test but taken on your own computer with a remote proctor.