Brad stared through the dirty soot-smeared window on the 22nd floor of the office tower.
Overcome with depression he slid the window open and jumped through it.
It was a sheer drop outside the building to the ground.
Miraculously after he landed he was completely unhurt.
Since there was nothing to cushion his fall or slow his descent, how could he have survived the fall?
Note: Riddles go here. I will merge others with this one if they are posted as to not add lots of clutter to the forum.