A new December and a new bunch of puzzles from mscroggs.co.uk.

n + n+1 + n+2 + … n+10 = 2024

Let m = n+5

m-5 + m-4 + … m + … m+5 = 2024

11m = 2024

m = 2024/11 = 184

n = m-5 = 179