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  Reasoning

Escape Hatch
 
Q SETTING:A prison cell with a dirt floor, stone walls, no window but a skylight very high up in the ceiling; no furniture except for a mattress

ACTION:The prisoner who was in the cell manages to escape through the skylight.

QUESTION:How did the prisoner escape?


 
A First, the prisoner dug a hole in the dirt floor. Second, the prisoner piled the dirt from the hole against the wall. Third, the prisoner climbed the pile of dirt and escaped through the skylight.

Based on a puzzle inMore Puzzles for Pleasure and Leisureby Thomas L. Hirsch. New York: Abelard-Schuman, 1974.