**Brain Teasers:**

Teaser |

1. You are given a scale which you are to use to measure
eight balls. Seven ofthese balls have the same weight: the eighth ball is heavier than the rest. The scale does not indicate the weight of a particular object; it is a scale which tells you which of the two sides being weighed is heavier (like the scale that lady of justice statue holds up). So, for example you could place one ball on each end of the scale. If ball one was heavier than ball two, it would tip in ball one's direction; if ball two were heavier, it would tip in ball three's direction; if the balls were of equal weight, the scale would not tip at all. What is the minimum number of weighs you could perform to find the heaviest of the eight balls? |

2. Imagine, now, that you have seven balls of unknown
weight, given that sixare of the same weight, and the seventh is heavier than the rest. Using the same scale as described above, what is the minimum number of weights you could perform to find the heaviest of the seven balls? |

3. Imagine that you have 26 constants, labeled A through Z. Each
constant isassigned a value in the following way: A = 1; the rest of the values equal their position in the alphabet (B corresponds to the second position so it equals 2, C = 3, etc.) raised to the power of the preceding constant value. So, B = 2 ^ (A's value), or B = 2^1 = 2. C = 3^2 = 9. D = 4^9, etc., etc. Find the exact numerical value to the following equation: (X - A) * (X - B) * (X - C) * ... * (X - Y) * (X - Z) =0 |

4. And finally, the hum-dinger: There are four people
who need to cross abridge at night. The bridge is only wide enough for two people to cross at once. There is only one flashlight for the entire group. When two people cross, they must cross at the slower member's speed. All four people must cross the bridge in 17 minutes, since the bridge will collapse in exactly that amount of time. Here are the times each member takes to cross the bridge: Person A: 1 minute Person B: 2 minutes Person C: 5 minutes Person D: 10 minutes So, if Person A and C crossed the bridge initially, 5 minutes would elapse, |

5. Container A has one liquid and Container B has another
liquid:Both are equal density and assume are completely soluble in eachother If you take one teaspoon of B and drop into A, Then take one teaspoon of A and drop into B. Do you have more of A in B or B in A? |

6. Two doors (one leads to Goodness and one leads to
Badness). We don't know which door is which. There is a man standing in
front of each door. One of the men always lies and the other always tells
the truth, but we don't know which. We have one question to ask either of
the men. What do we ask inorder to find out which door will lead to Heaven? |