1/6
The chance of throwing a six with one die is one in six. With a pair of dice it is one in six2 or one in 36.
1 out of 6
a pair 'a dice (paradise)
(1 in 6)2 or (1 in 36)
1 out of 2.
It is a probability of a 1 in 6
3 out of 36 possible rolls (1 & 3, 2 & 2, 3 & 1), so 3/36, or 1 out of 12.
The chance of throwing 7 with 2 dice is 1 in 6. The chance of throwing 7 with 2 dice 56 times in a row is 1 in 656 ≈ 1 in 3.771 x 1043.
2 out of 826.3
You have more chance with two dice rolled together ! The Probability of throwing a six with one dice is 1/6. The probability of throwing one six with two dice is 2/6 or 1/3. You're twice as likely to score a six if you're throwing two dice.
Partial answer: Assuming that the dice show the numbers 1, 2, 3, ... 14 on each die, and that the question refers to throwing both dice and getting the sum. The smallest sum is 2 and the greatest sum is 28. So the sample space is 2,3,4,...,28.
On a fair normal die it is 1/2.