I live in my hostel in NIT Tiruchchirapalli, in India. My hostel is infested with these beetle-like insects.
These insects posses a hard shell, if you flick them off the wall, they make a "tap" sound when they hit the ground. They're capable of flying but mostly stay on walls, sometimes even motionless. They also seem to be rather stupid, even for an insect. They don't attempt to escape even in life-or-death situations
What are these insects?