Web Desk: This riddle is to train your mind and check your ability to cope with stress.

This riddle is a challenge for you, try to solve it.

Still confused?

Gave up?

Answer?

D will be hit to the head by the rolling ball. C will be smacked by the spikes when that same ball rolls onto the swing. B will be hit, in turn, by the counterweight ball thrown off the swing up and forward.

Source: Brightside