You can store up to 1000 contacts in Metro XL. In addition, you can store up to 250 contacts in each of your sim card. So, if you are using 2 sim cards, in total you can store up to 1500 contacts.
No. This is a GSM mobile phone. It cannot support CDMA network.
Yes, you can use the LED Flash as torch also.
You can change the size of the fonts in Metro XL.
Yes, you can play youtube videos on this phone.