What/who connects?

Laaaate post is less late than the previous one. More to follow.

Cracked by: raklodramA, badideabear, username, Rogi, Rahulk, rickde, Manish Achuth, shrik, Bharath, Sumanth Patlolla, Dibyo, Aditya S, jinz, Thejas V R, Amarendra Kumar, Ananth, Logik, jowens, Siddarth Pai and Shwetha Maiya