There are infinitely many possible answers.
Select any number X, which may be positive or negative, rational or irrational (or even complex). And let Y = 68 - X.
Then the numbers X and Y will always sum to X + Y = X + 68 - X = 68.
Answer: The even numbers are 62, 64, 66, and 68
84
The two square numbers that add up to 225 are 144+81 = 225
2 numbers that add up to 8
The two prime numbers that add up to 19 are 7 and 12. Prime numbers are numbers greater than 1 that can only be divided by 1 and themselves. In this case, 7 and 12 are not prime numbers, and there are no two prime numbers that add up to 19.
There are many pairs of numbers that can add up to 136. For example, 68 and 68 are both the same number that add up to 136. Another pair could be 100 and 36. You can find various combinations by selecting different numbers that total 136.
68
137
5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 = 68
Answer: The even numbers are 62, 64, 66, and 68
137 and 11 are two prime numbers that add up to 148.
No two prime numbers can add to 119.
They are: 68+69+70 = 20768, 69 and 70.
84
The two square numbers that add up to 225 are 144+81 = 225
2 numbers that add up to 8
There are no two prime numbers that add up to be 152.