Author: PopularStar

If lives depends on your creativity QUIZ [Copy link] 中文

Rank: 6Rank: 6

Post time 2011-7-26 23:29:03 |Display all floors

The Answer

A switch has On and Off state. It doesn't matter if the switch is initially in On or Off state because adjustments can be made.
Let's assume the switch is in the OFF state initially (ON state would do fine also)

So I will be the counter.  I'll tell all of you to press On state only ONCE. That means if a person goes into the room but has already switch to ON once, he should not touch the switch although it is in the OFF state. If the switch is already in the ON state when one gets into the room, it should not be touched and hence wait for another opportunity to turn the switch ON if he has not done so. I am the only one who can change the switch from ON to OFF.

So I count the number of ON states and once it match the number of people(me excluded) I can safely conclude that all has gone into the room at least once.
9/11 was an outside job

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