Other Puzzles Interview Questions 

Question 
Asked @ 
Answers 

It comes once in a year and twice in a week what is that? 
Infosys 
19 
Take 5 Zero's and perform any mathematical opretion on them
to make ans 120. (can't use any number) 
CitiGroup 
15 
agar mein aapko ek pen gift du aur aapko kahu ki aap us pen
se mere haato me kuch likho jo mujhe hamesa yaad rahe to
aap kya likhoge? 

12 
Consider a chessboard with a single Rook. A Rook can move
any number of square sideways/forward, but not diagonally.
What is the minimum number of moves the Rook needs to make,
in order to pass over all the squares on the chessboard and
return to the original position? 

5 
What is the smallest number which when divided by 10 leaves
a remainder of 9, when divided by 9 leaves a remainder of 8,
when divided by 8 leaves a remainder of 7, when divided by 7
leaves a remainder of 6 and so on until when divided by 2
leaves a remainder of 1? 
Banking 
3 
The secret agent X emailed some code to his head office.
They are "RADAR, LEVEL, ROTOR, REDIVIDER, MOTOR". But four
of these five words have something in common and one is fake.
Can you tell which one is fake? Ignore the fact that four of
the codewords are of the same length. 

4 
if 12+22=24 23+8=6 32+13=40 73+16=144 then 36+2=? 
Wipro 
8 
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 
What is the smallest whole number that, when divided by 2,
leaves a remainder of 1; when divided by 3, leaves a
remainder of 2; and so on, up to leaving a remainder of 9
when divided by 10? 
ASDLab 
22 
In how many ways can we put numbers 1 to 9 without repeating
in a 3*3 matrix,so that the sum of all elements in any row and
column and diagonal is 15?? 
Amazon 
6 
Six cabins numbered 16 consecutively, are arranged in a row
and are separated by thin dividers. These cabins must be
assigned to six staff members based on following facts.
1. Miss Shalaka's work requires her to speak on the phone
frequently throughout the day.
2. Miss Shudha prefers cabin number 5 as 5 is her lucky number.
3. Mr. Shaan and Mr. Sharma often talk to each other during
their work and prefers to have adjacent cabins.
4. Mr. Sinha, Mr. Shaan and Mr. Solanki all smoke. Miss
Shudha is allergic to smoke and must have nonsmokers
adjacent to her.
5. Mr. Solanki needs silence during work.
Can you tell the cabin numbers of each of them? 

1 
A fly is flying between two trains, each travelling towards
each other on the same track at 60 km/h. The fly reaches one
engine, reverses itself immediately, and flies back to the
other engine, repeating the process each time.
The fly is flying at 90 km/h. If the fly flies 180 km before
the trains meet, how far apart were the trains initially? 

3 

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