yes it is
yes, you can. you can copy music to the xbox 360
You can't transfer files on xbox 360 using a usb thumb drive, but you can if you buy a xbox 360 memory card
No because xbox do not have windows
You can.
You can format and use a USB flash drive as an Xbox 360 storage device and store up to 2 terabytes (TB) of content.
because your xbox 360 hates you
For Grand Theft Auto: V, there will be an initial install on Xbox 360 that will require an Xbox 360 Hard Drive or an external 16GB USB flash drive with at least 8 GB of free space. If using a USB flash drive it must be at least USB 2.0 with a minimum 15mb/s read speed and formatted for Xbox 360 use. A new USB flash drive is recommended to ensure optimum performance.
No, It will not save game memory.
no
Yes
there is a little slot on the side of the xbox it folds in and there are two slots for them