🔴 hardwhat am-i

Under pressure is the only way I work, and by myself is the only way I am hurt. What am I?

Common Wrong Answers

Coal

While coal is related to diamonds in the carbon family and forms under pressure, it does not fit the criteria of being hurt when alone, as it can exist without being harmed.

A balloon

A balloon does rely on air pressure to function, but it can be harmed or popped whether alone or in a group, which contradicts the riddle's conditions.

A pressure cooker

A pressure cooker operates under pressure, but it does not get 'hurt' by being alone; it simply won't function without heat and contents.