Other Puzzles Interview Questions 

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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 
7 
there is a desert. a professor has to cross it n it takes
6days for him to cross. there are enough food reserves and
students who can help d professor cross d desert. each
person including professor can carry only 4 food packets
with him while crossing the desert. in d desert also, each
person can hav at the most 4 packets with him and they need
to eat one packet per person per day during their travel.
how wil d professor reach the other side of desert?? 
Exilant 
8 
*suppose u have 2 distribute a sum rs 50 among 30 studnt .it
is also decided that a male student will get double than of
female student.find the no. of male n female student of class? 

4 
3 boys ,a,b,c .
have 3 chocklets ..
a ate the chocklet.b thrown away the chocklet and c ate half
chocklet .now how many choclect each have in their hand. 
TCS 
33 
In a college, the science department has three disciplines.
In total, 280 students study chemistry, 254 students study
physics and 280 students study biology. 97 students study
both chemistry and physics, 138 students study both physics
and biology, 152 students study both chemistry and biology.
73 students study all three disciplines. Can you determine
how many students there are in the science department? 
Satyam 
7 
There are 2 items combined cost is 110.. one item cost is
100 rupees more than the cost of other. So tell me
indiviual cost of items...... 
Siemens 
10 
Mr. Wagle goes to work by a bus. One day he falls asleep
when the bus still has twice as far to go as it has already
gone.
Halfway through the trip he wakes up as the bus bounces over
some bad potholes. When he finally falls asleep again, the
bus still has half the distance to go that it has already
travelled. Fortunately, Mr. Wagle wakes up at the end of his
trip.
What portion of the total trip did Mr. Wagle sleep? 

1 
I am the owner of a pet store. If I put in one canary per
cage, I have one bird too many. If I put in two canaries
per cage, I have one cage too many. How many cages and
canaries do I have? (Expalin in Detail)
a.4 canaries and 3 cages
b.3 canaries and 4 cages
c.4 canaries and 5 cages
d.None of the above

DELL 
4 
A 3 digit number is such that it's unit digit is equal to
the product of the other two digits which are prime. Also,
the difference between it's reverse and itself is 396.
What is the sum of the three digits? 

4 
There are 3 societies A, B, C.
A lent cars to B and C as many as they had already.
After some time B gave as many tractors to A and C
as many as they have. After sometime c did the same thing.
At the end of this transaction each one of them had 24.
Find the cars each orginally had. 
Infosys 
3 
A man is stranded on a desert island. All he has to drink is
a 20oz bottle of sprite.
To conserve his drink he decides that on the first day he
will drink one oz and the refill the bottle back up with
water. On the 2nd day he will drink 2oz and refill the
bottle. On the 3rd day he will drink 3oz and so on...
By the time all the sprite is gone, how much water has he drunk? 

3 
Consider a state lottery where you get to choose 8 numbers
from 1 to 80, no repetition allowed. The Lottery Commission
chooses 11 from those 80 numbers, again no repetition. You
win the lottery if at least 7 of your numbers are there in
the 11 chosen by the Lottery Commission.
What is the probability of winning the lottery? 

2 

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