Monday, September 24, 2012

Brain Teasers # 12 - Circle Numbers

Can you circle exactly four of these numbers such that the total is twelve?





Post the answer if you know it.

In the meanwhile, here is the solution to yesterday's puzzle.


Answer: 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 :-) 

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