| Other Puzzles Interview Questions |
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| Question | Asked @ | Answers |
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| Scientist decided to do a study on the population growth of
rabbits. Inside a controlled environment, 1000 rabbits were
placed.
Six months later, there were 1000Z rabbits. At the beginning
of the 3rd year, there were roughly 2828Z rabbits, which was
4 times what the scientists placed in there at the beginning
of the 1st year.
If Z is a positive variable, how many rabbits would be there
at the beginning of the 11th year? | | 1 |
| Mark ate half of a pizza on Monday. He ate half of what was
left on Tuesday and so on. He followed this pattern for one
week.
How much of the pizza would he have eaten during the week? | | 2 |
| A person is standing at the top of a 100mt building, he has
a rope 75mts long and the only way he can come down is
through the rope. He can cut the rope also he can tie the
rope at any point on the building, but he cant jump and
ofcourse dont even think about the stairs :D Find out the
best way he'll come down. | Huawei | 7 |
| There is a shortage of tubelights, bulbs and fans in a
village - Kharghar. It is found that
? All houses do not have either tubelight or bulb or fan.
? exactly 19% of houses do not have just one of these.
? atleast 67% of houses do not have tubelights.
? atleast 83% of houses do not have bulbs.
? atleast 73% of houses do not have fans.
What percentage of houses do not have tubelight, bulb and fan? | | 1 |
| Consider a number 235, where last digit is the sum of first
two digits i.e. 2 + 3 = 5.
How many such 3-digit numbers are there?
| | 3 |
| Montu, Bantu, Chantu and Pintu have pets.
Montu says, "If Pintu and I each have a dog, then exactly
one of Bantu and Chantu has a dog."
Bantu says, "If Chantu and I each have a cat, then exactly
one of Montu and Pintu has a dog."
Chantu says, "If Montu and I each have a dog, then exactly
one of Bantu and Pintu has a cat."
Pintu says, "If Bantu and I each have a cat, then exactly
one of Bantu and I has a dog."
Only one of the four is telling the truth. Who is telling
the truth? | | 1 |
| ? A is the father of two children - B and D who are of
different sexes.
? C is B's spouse.
? E is the same sex as D.
? B and C have the two children - F who is the same sex as B
and G who is the same sex as C.
? E's mother, H who is married to L, is the sister of D's
mother, M.
? E and E's spouse, I have two children - J and K who are
the same sex as I.
Note that no persons have married more than once. Also,
there are more number of females than males. Can you tell
how many females are there? | | 3 |
| 3 boys go to the restaurant. Their bill was 75 rs..
So they contributed 25 each. Manager then gives 5 rs back
to the waiter and then waiter gave 3 rs back to them and
put 2 rs into his pocket..
So their actual contribution is 24 because they got 1-1 rs
back. so 24*3=72 and 2 rs into the waiter's pocket. so
74+2=74
where is 1 rs? | Merlion | 12 |
| A drinks machine offers three selections - Tea, Coffee or
Random (Either tea or Coffee) but the machine has been wired
up wrongly so that each button does not give what it claims.
If each drink costs 50p, how much minimum money do you have
to put into the machine to work out which button gives which
selection? | | 4 |
| How many squares are there in a 5 inch by 5 inch square
grid? Note that the grid is made up of one inch by one inch
squares. | | 2 |
| You have 3 points labelled A, B and C. You then have another
3 points labelled 1, 2 and 3. The aim of the puzzle is to
connect point A with point 1, 2 and 3. Point B with point 1,
2 and 3 and point C with point 1, 2 and 3.
Now while connecting the points you have to follow one rule
- the lines cannot cross over each other. | | 1 |
| There are 10 statements written on a piece of paper:
1. At least one of statements 9 and 10 is true.
2. This either is the first true or the first false statement.
3. There are three consecutive statements, which are false.
4. The difference between the numbers of the last true and
the first true statement divides the number, that is to be
found.
5. The sum of the numbers of the true statements is the
number, that is to be found.
6. This is not the last true statement.
7. The number of each true statement divides the number,
that is to be found.
8. The number that is to be found is the percentage of true
statements.
9. The number of divisors of the number, that is to be
found, (apart from 1 and itself) is greater than the sum of
the numbers of the true statements.
10. There are no three consecutive true statements.
Find the minimal possible number? | | 1 |
| On the shelf you have 10 identical bottles of identical
pills (let?s say there?s a hundred pills in each bottle).
However, one of those 10 bottles contains cheap knockoff
pills. The only way to differentiate fake pills from real
pills is the weight - while real pills weigh 1 g each, the
knockoff pills are only 0.9 g. You have one scale that
shows the exact weight (down to the mg) of whatever is
weighed.
How can you tell which bottle contains fake pills with just
1 weighing?
| TCS | 5 |
| Consider the sum: ABC + DEF + GHI = JJJ
If different letters represent different digits, and there
are no leading zeros, what does J represent? | | 1 |
| Three convicts are brought into the warden's office. He says
he can parole one of them and to decide which one he will
parole he takes out 5 hats (3 red and 2 white). He stands
behind them and places a hat on each one of their heads and
puts the other two remaining hats in a drawer.
He tells the prisioners they can look at the others hats and
if they can tell which hat they have on they will be the one
who is paroled.
The first man looks at the other two and says, "I don't know."
The second man looks at the others hats and says, "I don't
know."
The third man who is blind says, "Even though I have not the
gift of sight I can tell by what the others have said that
the color of my hat is..."
What color is the blind mans hat and how does he know? | Bally-Technologies | 2 |
| A man has Ten Horses and nine stables as shown here.
[] [] [] [] [] [] [] [] []
The man wants to fit Ten Horses into nine stables. How can
he fit Ten horses into nine stables? | | 2 |
| A man got 30 aples in 1 Rs.Now he want 20% of profit on it.
How many apples He should Sell in 1 Rs.?? | TCS | 13 |
| 1. There are six columns of coins and there are eight
coins in each column. One of the columns is entirely of
fake coins and other five columns contain real coins.
Weight of one fake coin is 1 gm more than the real coin
which is 50 gm. How you can tell which column contains fake
coin by single weight?
2.You want to purchase a two wheeler. You got three options
from the counter.
1) Pay Rs. 40,400 on single payment
2) Pay Rs. 20,000 now and remaining by two equal annual
installment of Rs. 11,600
3) Pay Rs. 15,000 now and remaining by three equal annual
installment of Rs. 10,000
Which option is most attractive? (Take annual interest rate
9%) | | 3 |
| An anthropologist discovers an isolated tribe whose written
alphabet contains only six letters (call the letters A, B,
C, D, E and F). The tribe has a taboo against using the same
letter twice in the same word. It's never done.
If each different sequence of letters constitues a different
word in the language, what is the maximum number of
six-letter words that the language can employ? | | 1 |
| one women said ?I have three sons their ages are all less
than ten,the product of the two younger sons is equal to
the sons age who has greatest age and the sum of their ages
is always a prime number.find their ages | Infosys | 3 |
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