CHRISTMAS BRAIN TEASER
Here is Puzzle of the day – CHRISTMAS BRAIN TEASER, Four angels sat on the Christmas tree amidst other ornaments. Two had blue halos and two – yellow. However, none of them could see above his head. Angel A sat on the top branch and could see the angels B and C, who sat below him. Angel B, could see angel C who sat on the lower branch. And angel D stood at the base of the tree obscured from view by a thicket of branches, so no one could see him and he could not see anyone either.
Which one of them could be the first to guess the color of his halo and speak it out loud for all other angels to hear?
There are 2 possible solutions:
1. if angels B and C had aureole of the same color, then angel A must have immediately said his own color (other then theirs),
2. if angels B and C had different colors, then angle A must have been silent and that would have been a signal for angel B, who could know (looking at angel C) what his own color is (the other one then C had).
- A lucky guess is to a logic puzzle as a Cuisinart is to a jigsaw puzzle; Yes, it’s quicker, and at the end, all the pieces fit together nicely, but it’s not something you really want to spend your time looking at.
- If A does not speak out, B will be able to guess that his aureole is the color other than that of C.