True
When a die is thrown, maximum possible outcomes are 6, i.e. 1, 2, 3, 4, 5, 6.
So, when a pair of dice is thrown together, maximum sum will be 12, if and only if both dice get 6 together. So, that pair will be (6, 6) and the sum is 12.
∴ It is impossible to get a sum of 14 on both dice, when a pair of dice is thrown together.