The "Bridge Crossing Puzzle" is a classic logic problem involving four people who need to cross a bridge at night. They have only one flashlight and the bridge can hold a maximum of two people at a time. Each person walks at a different speed, which affects how long it takes for them to cross the bridge. The challenge is to get all four people across in the least amount of time while adhering to the crossing rules. To solve the puzzle, players must strategize the order in which the individuals cross the bridge, ensuring that the flashlight is always returned to the side where it is needed. The puzzle emphasizes critical thinking and problem-solving skills, making it a popular exercise in logic and reasoning.