Let's Play Hurt Your Brain….LOL

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Three Brain busters bellow. Answers at bottom. No peeking!
There are three switches downstairs. Each corresponds to one of the three light bulbs in the attic. You can turn the switches on and off and leave them in any position.
How would you identify which switch corresponds to which light bulb, if you are only allowed one trip upstairs? 
A Ping-Pong Ball in a Hole
Your last good ping-pong ball fell down into a narrow metal pipe imbedded in concrete one foot deep.How can you get it out undamaged, if all the tools you have are your tennis paddle, your shoe-laces, and your plastic water bottle, which does not fit into the pipe? 



A Man in an Elevator  

A man who lives on the tenth floor takes the elevator down to the first floor every morning and goes to work. In the evening, when he comes back; on a rainy day; or if there are other people in the elevator, he goes to his floor directly. Otherwise, he goes to the seventh floor and walks up three flights of stairs to his apartment.
Can you explain why?

(This is one of the more popular and most celebrated of all lateral thinking logic puzzles. It is a true classic. Although there are many possible solutions that fit the conditions, only the canonical answer is truly satisfying.) 
No peeking….    😉 

Bulbs – solution
Keep the first bulb switched on for a few minutes. It gets warm, right? So all you have to do then is … switch it off, switch another one on, walk into the room with bulbs, touch them and tell which one was switched on as the first one (the warm one) and the others can be easily identified …

Ball in a Hole – solution
All you have to do is pour some water into the pipe so that the ball swims up on the surface.  
The Man in the Elevator – solution
The man is a of short stature. He can’t reach the upper elevator buttons, but he can ask people to push them for him. He can also push them with his umbrella. 
~Steve~                                                       H/T Brain Den 

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0 responses to “Let's Play Hurt Your Brain….LOL

  1. Dave from Atlanta

    Okay, only 2 out of 3 this time. The light bulb riddle had me stumped but I got the “float the ball” and the “short guy in elevator.”

  2. I got 2 out of 3; didn’t get the guy in elevator. But…I contest that one!!!
    The question says the guy takes the elevator all the way up to the 10th floor:
    1. When he comes home in the evening;
    2. When other people are in the elevator;
    3. When it’s raining.
    The question ASSUMES that:
    a. There would be other people riding the elevator IN THE EVENING.
    b. That the guy uses an umbrella. I sometimes wear a raincoat and rainhat in the rain!

  3. Ditto, first two but not the third.

  4. 1. I think you c0uld flip all of the switches on when you go into the attic and turn them all off when you get down.
    2.This was easy. It would have been hard if you were trying to get a golfball out of the pipe.
    3. I thought the guy was an elevator operator and the guests on the top floors had phobias about riding in an elevater during the rain.

  5. I’m going to comment by not commenting. Good night.


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