Can’t be 13 because highest each die can be is 4 and 8 which sum to 12.
Can be 6 , for example 2 and 4
cant be 0 because each dIe minimum is 1 for a minimum sum of 2
can be 10, for example 4 and 6
cant be 1 because each die minimum is 1 for a minimum sum of 2