Some Puzzles asked during placements

Puzzles are very common in Campus Placements and are used in written tests and sometimes even in Interviews during the company selection process. here are some of the select Puzzles for you guys:

Brothers and Sisters

A family I know has several children. Each boy in this family has as many sisters as brothers but each girl has twice as many brothers as sisters. How many brothers and sisters are there?

Number of Zeros

What is the number of zeros at the end of the product of the numbers from 1 to 100?
How to solve these type of quetions ,is there any short cut to find out ,it might be up to 100 ,or product up to 1000 , then it is difficult for us to solve
plez tell me the solution , and steps to sove these type of que

Four horses with three bullets

there is a large square field.

four horses are tied to the four corners of the field and a man is standing in the middle with a gun.
for some reasons he have to shoot all the four horses.
answer such that he have to shoot all the four horses with only 3 bullets.

Power Failure

There is a power failure at 11.00 pm on 1st May 2007 and the power resumes only at 11.30 pm on the same day.

An electric clock, which was functioning normally until the power failure, starts up as soon as the power supply restarts, but resumes backwards at half the usual speed.

At what time on the following day will the electric clock show the same time as the actual correct time?

Number of Legs in Bus

There is a bus with 7 girls
Each girl has 7 bags
In each bag, there are 7 big cats
Each big cat has 7 little cats
Each cat has 4 legs

Question: How many legs are present in bus?

Amout of cheque

A confused bank teller transposed the dollars and cents when he cashed a check for Ms Smith, giving her dollars instead of cents and cents instead of dollars. After buying a newspaper for 50 cents, Ms Smith noticed that she had left exactly three times as much as the original check. What was the amount of the check?
(Note: 1 dollar = 100 cents.)

Colour of Cap

There 3 black and 2 red caps are available.

There 3 men who are having same intelligence know abt caps.
All 3 men eyes were tied after that caps were placed in their head.
1. first men opens his eye sees others cap color and say I couldn’t predict my cap color.(he can’t see his cap)
2. second men opens his eye sees third men’s cap color and say I couldn’t predict my cap color.(he can’t see his cap)
3. Third men after opening simply says his cap color correctly.

What was that color? and how he knows? This is the qn asked to me in interview.

How many Eggs

Once upon a time, and old lady went to sell her vast quantity of eggs at the local market.

When asked how many she had, she replied:

Son, I can’t count past 100 but I know that.

If you divide the number of eggs by 2 there will be one egg left.
If you divide the number of eggs by 3 there will be one egg left.
If you divide the number of eggs by 4 there will be one egg left.
If you divide the number of eggs by 5 there will be one egg left.
If you divide the number of eggs by 6 there will be one egg left.
If you divide the number of eggs by 7 there will be one egg left.
If you divide the number of eggs by 8 there will be one egg left.
If you divide the number of eggs by 9 there will be one egg left.
If you divide the number of eggs by 10 there will be one egg left.

Finally. If you divide the Number of eggs by 11 there will be NO EGGS left!

How many eggs did the old lady have?

You have any Puzzles which you encountered in written tests and Interviews – write in the comments below.