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December 30, 2008

Missing Number Series

Find the missing number in the series?
9, 61, 52, 63, 94, ___ , 18?

December 29, 2008

Time and Distance Problem

A man had covered 2/3 of distance by cycling and remaining
covered on feet. For this he took twice the time to
the cycling. Find how much speed is greater for cycling
than on feet?

Brain logic

The answer to this question contains how many Characters ?







December 23, 2008

Date puzzle

On October 2, 2001, the date in MMDDYYYY format was a
palindrome (same forwards as backwards).That is 10/02/2001.
When was the last date that this occurred on before year 2001?

December 15, 2008

302 dollar problem

You are having $302 with you. Divide $302 (in whole $ increments)
into a number of bags so that I can ask for any amount between
$1 and $302, and you can give me the proper amount by giving me
a certain number of these bags without opening them. What is the
minimum number of bags you will require?

Water jar problem

You have a three gallon and a five gallon measuring device.
How will you measure out four gallons.

December 12, 2008

Find the angle

What would be the angle between hour and minute hand,
when time is 7:20 ?

December 11, 2008

Crime scene puzzle

There is a man dead in a locked office, sitting at his desk.
On the desk there are a couple of pieces of blank paper,
a pen and a sealed envelope. The office is locked from the
inside. No-one has directly killed him. How was he killed?

Permutation & Combination

A bag Contains 5 black balls, 10 red balls and
12 white balls...Atmost in how many draws you
could get a pair....?

Funny question of the day

In a pond there are 10 fish, one of them dies, and the water
level of the pond increases. How?

December 10, 2008

Who did it?

Three of these statements are untrue,

Mr Red: "Mr Blue did it."

Mr Blue: "Mr Red did it."

Mr Green: "Mr Blue's telling the truth."

Mr Yellow: "Mr Green's not lying

Do you know who did it??

Number 1000 Buildings

A certain street has 1000 buildings. A sign-maker is
contracted to number the houses from 1 to 1000.
How many zeroes will he need?

Who is doctor, who is lawyer?

Mr. Hari, his wife, his son, his mother, among these people
one of them is a Lawyer, and the other is Doctor

a) If lawyer is younger than the Doctor,
then they dont have blood relations
b) If lawyer is a women, then Doctor and
lawyer have the blood realations
c) If Doctor is man, then lawyer is also a man.

Who is doctor, who is lawyer?

3d cube problem

A block of wood in rectangular form that is
4cm x 10cm x 11cm all surfaces of pink rose color.
If the block of wood is cut into 440 cubes of
1cm × 1cm x 1cm each, how many cubes would
have color pink rose?

Solve the series

10 , 9 , 60 , 90 , 70 , 66 , ....

December 9, 2008

Light Bulb

A light bulb is hanging in the first floor of the room.
There are three switches in the ground floor room.
One of these switches belongs to that light bulb.
The light bulb is not lit and the switches are in off
state. There is only one chance to visit the room.
How can it be determined which of these switch
is connected to the light bulb.

December 8, 2008

What is the population of TIBET

How many people are living in Tibet
With the help of following data can you find
How many people were listed as living in Tibet?

The population of some countries is calculated based upon
some logic and listed here:-

USA 130,000
England 410,000
France 340,000
Peru 200,000
Brazil 340,000
Greece 300,000
Japan 270,000

December 5, 2008

Find the Number

There is a 10 digit number whose first digit is the no:
of occurence of 0's in the number. Second number is
no: of occurence of 1's in the number. Third number
is the no: of occurence of 2's in the number. 4'th no:
is the number of occurence of 3's in the number. and so
on up to 10th digit is no of 9's in the number.
what is the number?

Age problem

I am 5 times as old as you were when I was as old as you are.
Find our present ages.

True Lies

Tina & Meena are twins. One of them lies while the other
is truthful. I asked one of them, "Does Tina lie?" "Yes",
was the answer.Did I speak to Tina or Meena?

December 3, 2008

Number logic problem




Find the distance travelled

Two Buses enter in a tunnel 225 Km long, one of those buses
is travelling at 75 Km/h and at the same time another one
running at a speed of 37.5 Km/h from opposite directions.
As soon as they enter the tunnel a butterfly flying at
898 Km/h starts from one bus and heads toward the other one.
As soon as it reaches the other one it turns around and
heads back toward the first, going back and forth between
the buses until the buses collide in a fiery explosion
in the tunnel (the butterfly survives).
how far did the butterfly travel?

Number Problem

Using following numbers and following operators you have to produce 28.

Numbers are 1, 5, 7 and 8.

Operators are +, -, * and /

You can use ( ) brackets as well.


1-You can use each number only once.

2-You can not use any other operator or symbol.

3-You can not use 1 and 5 as 15.

4-You have to use all of the above number mentioned (1,5,7 and 8)

December 2, 2008

Number Sequence problem

For all the Mathematics champs (Including future champs also),
find the 6th Number?

1, 2, 6, 42, 1806, ?

December 1, 2008

Password Problem

A man wanted to enter an exclusive club but did not know the
password that was re quired. He waited by the door and
listened.A club member knocked on the door and the
doorman said, "twelve." The member replied, "six " and was
let in.A second member came to the door and the doorman said,
"six." The member replied, "three" and was let in.The man
thought he had heard enough and walked up to the door.
The doorman said ,"ten" and the man replied, "five.
"But he was not let in. What should have he said?

Lateral Thinking

A girl who was just learning to drive went down a one-way
street in the wrong direction, but didn't break the law.
How come?