6 Mind Bending Riddles Only 5 Percent of People Solve
⏱ 2 min read
•
Fun
•
👁 137
Page 4 of 5
4 The Light Switch Problem
Three switches control three bulbs in another room. You can only enter the room once. Turn on switch 1 for 5 minutes, turn it off, turn on switch 2, enter the room. The warm-but-off bulb is switch 1, the on bulb is switch 2, the cold bulb is switch 3.