BrainDen.com - Brain Teasers

# DejMar

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3. ## How ?

One possible scenario:

6. ## liar and truth-teller

Captain Ed's solution is equally correct, but more concisely stated.
7. ## Gold Bar on a Bus

How would the man even get the gold bar to the bus, if he can only travel (with the gold bar) by bus?
8. ## three circles

@jasen - Rotations and reflections may be considered the same for the visual layout, but not for the assignment of values to specific points. There are twelve different solutions. If one considers rotations and reflections to be pertinent, so one should one allow the eversion of this particular figure due to the placement of the points. In such case there is but one solution.

12. ## Marry the Princess

Another consideration is the possibility that "Only one statement is true" is meant to refer to one statement of each of the pairs of statements. In such a case...

15. ## Really?

In answer to you second question,

18. ## Counterfeit Coins

If each column has precisely 8 false coins and each column is composed of 8 coins, then... ..., or, perhaps is intended to be interpreted as each pile has twenty-four coins, for a total of 72 coins in the three piles?
19. ## 2 oldest are twin

I am guessing I visually transposed one pair of rows in the spreadsheet. 6+6+6+2 does equal 20. Perhaps I was entranced by that twenty-year-old, and took my eyes off the mathematician's sister.
20. ## Rectangram

Request clarification to the definition intended for tangram: The value of N aside, there is still a need to clarify what is meant by "that do not share the same (integer units) length of side." Does the qualification mean that each individual length of a side is a unique integer or that each ordered pair of integer sets [(length, width), such that length >= width] is unique?

22. ## Devourer [association]

Possibilities: