Other Puzzles Interview Questions 

Question 
Asked @ 
Answers 

A positive integer that, when added to 1000 gives a sum
which is greater than when multiplied by 1000.
Find the positive integer. 

6 
I have two coins for 75 paise.1 coin is not 50 paise, how? 
Infosys 
40 
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: 1333, 334666, or 667999? 
ABC 
1 
There are N secret agents each know a different piece of
secret information. They can telephone each other and
exchange all the information they know. After the telephone
call, they both know anything that either of them knew
before the call.
What are the minimum number of telephone calls needed so
that all of the them know everything? 
Microsoft 
8 
Ekta got chocolates to give her friends on her Birthday. If
she gives 3 chocolates to each friend,
one friend will get only 2 chocolates. Also, if she gives 2
chocolates to each friends, she will
left with 15 chocolates.
How many chocolates Ekta got on her Birthday? and how many
friends are there? 

5 
what makes a road as abroad? 

10 
In the town called Alibaug, the following facts are true:
? No two inhabitants have exactly the same number of hairs.
? No inhabitants has exactly 2025 hairs.
? There are more inhabitants than there are hairs on the
head of any one inhabitants.
What is the largest possible number of the inhabitants of
Alibaug? 
HCL 
1 
I bought a car with a peculiar 5 digit numbered licence
plate which on reversing could still be read. On reversing
value is increased by 78633.
Whats the original number if all digits are different? 
TCS 
2 
a circle is drawn...roughly in paper...the interviewer asked
me to find centre point of circle?the radius,circumference is
not known?how to find it? 
Manhattan 
19 
Assume that you have just heard of a scandal and you are the
first one to know. You pass it on to
four person in a matter of 30 minutes. Each of these four in
turn passes it to four other persons
in the next 30 minutes and so on.
How long it will take for everybody in the World to get to
know the scandal? 

3 
A remote island contains a tribe whose members have either
blue or brown eyes. Tribe members do not know the color of
their eyes and if they learn it, they must kill themselves
the same night. Every member of the tribe always behaves
logically... 
Amazon 
2 
You have four 9's and you may use any of the (+, , /, *) as
many times as you like. I want to see a mathematical
expression which uses the four 9's to = 100
How many such expressions can you make? 
Sahara 
1 

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