Interview puzzle 7

1

Mind Teasers : Fake Coin Brain Teaser 

In front of you, there are 9 coins. They all look absolutely identical, but one of the coins is fake. However, you know that the fake coin is lighter than the rest, and in front of you is a balance scale. What is the least number of weightings you can use to find the counterfeit coin?


2

Mind Teasers : Popular Logical Riddle 

A mules travels the same distance daily.
I noticed that two of his legs travels 10km and the remaining two travels 12km.
Obviously two mules legs cannot be a 2km ahead of the other 2.

The mules is perfectly normal. So how come this be true ?


3

Mind Teasers : Quick Fire Riddle 

There is uniqueness between these five names
Nell Edna swati itaws and Ellen.

what uniqueness am i talking about ?


4

Mind Teasers : Unique Brain Teaser 

It takes ten minutes to fry a steak (five minutes for each side). You are frying the steaks in a pan that can accommodate only two steaks at one time. What is the least amount of time by which you can fry all the three steaks you have?


5

Mind Teasers : New Answer Riddle 

There is a puzzle which can be asked all day with a different correct answer each time. What is the puzzle ?