What “problem”/paradox does this graph show?

If I told you what pair the Y-Axis was, I would be telling you the answer.

Cracked by: Rogi, Manish Achuth, KK, Ananth, Amarendra Kumar, Logik, rickde, Bipin Banavalikar, Sumanth Patlolla, Dibyo, Bharath, K. Vijayanth Reddy and Vishnu Prashanth