Question
There are 100 light bulbs lined up in a row in a long room. Each bulb has its own switch and is currently switched off. The room has an entry door and an exit door. There are 100 people lined up outside the entry door. Each bulb is numbered consecutively from 1 to 100. So is each person. Person No. 1 enters the room switches on every bulb and exits. Person No. 2 enters and flips the switch on every second bulb (turning off bulbs 2 4 6
Answer
More Math Riddles
Breaking and Falling
What falls but doesn"t break and what breaks but doesn"t fall?"
Quack Riddle
What is a computer virus?

More Riddles and Answers
Logic  Math  Miscellaneous  What Am I  Words
