The rungs of a 10 foot ladder attached to a ship are 1 foot apart. If the water is rising at the rate of two foot an hour, how long will it take until the water covers over the ladder?
A man is trapped in a room. The room has only two possible exits: two doors. Through the first door there is a room constructed from magnifying glass. The blazing hot sun instantly fries anything or anyone that enters. Through the second door there is a fire-breathing dragon. How does the man escape?