Windows For Days

Riddle: George was cleaning the windows on the eighteenth floor of an office block when there was a massive power failure. The electric hoist on his platform was immoblized. So how did he manage to get down before the power was restored?

Answer: George walked down the stairs. He was cleaning the inside of the windows. Source: https://riddles.com/index.php/2274

George was cleaning the windows on the eighteenth floor of an office block when there was a massive power failure. The electric hoist on his platform was immoblized.
So how did he manage to get down before the power was restored? — Windows For Days by Rachelle Vandiver Riddle