| Other Puzzles Interview Questions |
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| Question | Asked @ | Answers |
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| A tank can be filled by pipe A in 30 minutes and by pipe B
in 24 minutes. Outlet pipe C can empty the full tank in X
minutes.
If the tank is empty initially and if all the three pipes A,
B and C are opened simultaneously, the tank will NEVER be
full. Give the maximal possible value of X. | | 1 |
| A man went into a fast food restaurant and ate a meal
costing Rs. 105, giving the accountant a Rs. 500 note. He
kept the change, came back a few minutes later and had some
food packed for his girl friend. He gave the accountant a
Rs. 100 note and received Rs. 20 in change. Later the bank
told the accountant that both the Rs. 500 and the Rs. 100
notes were counterfeit.
How much money did the restaurant lose? Ignore the profit of
the food restaurant. | TCS | 8 |
| What is the area of the triangle ABC with A(e,p) B(2e,3p)
and C(3e,5p)?
where p = PI (3.141592654) | | 1 |
| A contractor had employed 100 labourers for a flyover
construction task. He did not allow any woman to work
without her husband. Also, atleast half the men working came
with their wives.
He paid five rupees per day to each man, four ruppes to each
woman and one rupee to each child. He gave out 200 rupees
every evening.
How many men, women and children were working with the
constructor? | | 2 |
| My friend collects antique stamps. She purchased two, but
found that she needed to raise money urgently. So she sold
them for Rs. 8000 each. On one she made 20% and on the other
she lost 20%.
How much did she gain or lose in the entire transaction? | | 2 |
| Everyday in his business a merchant had to weigh amounts
from 1 kg to 121 kgs, to the nearest kg. What are the
minimum number of different weights required and how heavy
should they be? | | 2 |
| There is a number that is 5 times the sum of its digits.
What is this number? Answer is not 0. | | 1 |
| A ship went on a voyage. After it had travelled 180 miles a
plane statrted with 10 times the speed of the ship. Find
the distance when they meet from starting point. | Infosys | 7 |
| A mule and a donkey were carrying full sacks on their backs.
The mule started complaining that his load was too heavy.
The donkey said to him "Why are you complaining? If you gave
me one of your sacks I'd have double what you have and if I
give you one of my sacks we'd have an even amount."
How many sacks were each of them carrying? Give the minimal
possible answer. | | 1 |
| If A+B=C, D-C=A and E-B=C, then what does D+F stands for?
Provide your answer in letter terms as well as in number terms. | | 1 |
| Arrange five planets such that 4 of them add up to 5th
planet numerically. Each of the letters of the planet should
represent a unique number from the range 0 - 9. You have to
use all ten digits.
There is an amazing mathematical relationship exists among
the names of the planet. | | 1 |
| One light light flashes 3 times in a minute and an another
light flases 3 times in 2 minutes.Find the duration after
which both lights will flash same number of times. | | 2 |
| If a bear eats 65 pounds in fish every day EXCEPT every 6th
day which it only eats 45 pounds of fish.
If the bear continues this, how many pounds of fish will it
eat in 200 days? | | 1 |
| If you added together the number of 2's in each of the
following sets of numbers, which set would contain the most
2's: 1-333, 334-666, or 667-999? | ABC | 1 |
| At a recent painting competition,Jonny's rendition of a
constable was not last.priya only just managed to avoid last
place and came third.the lady who paintd a monkey was very
successfull and took first place>Mary beat the lady who
painted the lady the temple and the lady who painted the
flower beat saching.can you determine who painted what and
who won | QA | 2 |
| To move a safe, two cylindrical steel bars 7 cms in
diameter are used as rollers. How far will the safe move
forward when the rollers have made one revolution? | IBM | 8 |
| There is a grid of 20 squares by 10 squares. How many
different rectangles are possible?
Note that square is a rectangle. | | 1 |
| There is a safe with a 5 digit number as the key. The 4th
digit is 4 greater than the second digit, while the 3rd
digit is 3 less than the 2nd digit. The 1st digit is thrice
the last digit. There are 3 pairs whose sum is 11.
Find the number.
| | 3 |
| If you were to dial any 7 digits on a telephone in random
order, what is the probability that you will dial your own
phone number?
Assume that your telephone number is 7-digits. | | 3 |
| A fish had a tail as long as its head plus a quarter the
lenght of its body. Its body was
three-quarters of its total length. Its head was 4 inches long.
What was the length of the fish? | | 1 |
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