NOBODY wrote:2 ,
118 AND 8
You do have a point xD
The question is not properly stated. A better question would be 'Upto how many numbers must the sequence $2,3,8,13,18,23, \dots ,118$ be continued to ensure that there exists at least one pair with sum $126$'.
Though that is still not perfect because the sequence is not well defined. I mean, no well-known sequence starts with $2,3,13,18,23$ The closest we have is this one
Or maybe the question is perfect and they want to see who has the common sense to give 2 as the answer.