Quicker Maths » puzzle questions

Imagine you are in a room with 3 switches

admin — Sat, 24 Dec 2011 08:12:14 +0000

IQ Test

Imagine you are in a big house and you need to match out the 3 switches located in the first floor with the three light bulbs located in the ground floor. In the ground floor there are 3 bulbs (all are off at the moment), each switch belongs to some bulb.

Question

How can you find out, which switch belongs to which bulb?

Other conditions

It is impossible to see from one room to another.

He can only get down only once to check out the bulb.

Only hands are used. No other device.

Leave your answers below as comments.

Climbing Problem of Creepers

admin — Mon, 25 Oct 2010 09:14:27 +0000

Another puzzle for you guys. I know there are lot of puzzle enthusiasts out there.

This is an interesting puzzle related to understanding of circular motion. You can solve the puzzle by logic or having some basic mathematical understanding of circular motion. Try it out!

Puzzle

Two creepers, one jasmine and the other rose, are both climbing up and round a cylindrical tree trunk. The jasmine twists clockwise and the rose anti-clockwise, and they both start at the same point on the ground. Before they reach the first branch on the tree the jasmine has made 5 complete twists and the rose 3 twists.

Not counting the bottom and the top, how many times do they cross?

Something for the Chickens

admin — Sat, 23 Oct 2010 00:23:50 +0000

A simple mathematical logic says -

odd + odd = even

odd + even = odd

even + odd = odd

even + even = even

Now since you know this have a look at the small riddle below -

A friend of mine runs a small poultry farm in Bangalore. She took me round to see the place. I counted the number of chickens. There were 27 of them. And there were 4 enclosures. I noticed that in each enclosure there were an odd number of chickens.

Can you tell how many there were in each enclosure?

Weight Puzzles

admin — Tue, 02 Feb 2010 11:49:22 +0000

Sample Puzzles

Find below couple of weights and balance scale related puzzle questions. We are also mentioning the difficult level as per our perception. Our opinion may differ from yours.

Weight Puzzle Number 1

Here is a puzzle question of average (2/5; 5/5 is most difficult) difficulty level -

Among 12 identical looking golf balls there is one that is defective in weight. It is either heavier or lighter than the standard one. You have a balance Scale. You can only weigh 3 times to find out which one is defective and whether it is heavier or lighter.

Explain how will you be able to find the defective ball.

Weight Puzzle Number 2 -

How many pre-measured weights do you need if you have got a balance scale in order to measure the weight of an object in the right pan of the balance scale. The weight of the object could be any exact number of Kilograms up to at least 120 Kg? Please also mention the weight (in Kgs) of the weights.

Leave your answer below by writing in the comment area!

How many pre-measured weights (for the left pan of your balance scale) do you need in order to measure the weight of an object in the right pan of the balance scale (you should be able to measure any exact number of ounces up to at least 120 ounces)?

Headless Words Puzzle – Funny Puzzles

admin — Tue, 29 Dec 2009 10:25:19 +0000

Can you find these words from the clues?

If the clue were ‘Behead a mass killing to find amusement’, the answer would be LAUGHTER, since by beheading SLAUGHTER you are left with LAUGHTER.

Behead a journey by air to find illumination.
Behead a mark to produce a running competition.
Behead anger to find your years.
4. Behead a seat to get head covering.
Behead an apparition to find an entertainer of guests.
Behead a support to get a bat for tennis.
Behead the result of injury to make a vehicle.
Behead an old weapon to find a fruit.
Behead attractiveness to produce damage.
Behead a section to get lousy insects.

Logical Questions: Logical Puzzle

admin — Tue, 29 Dec 2009 09:18:59 +0000

In a day at the library, 64 people borrowed books. Twice as many people borrowed a thriller only as borrowed a science fiction novel only. Three people borrowed a biography only and 11 people borrowed both science fiction and a thriller but not a biography. The same number borrowed a biography and a thriller but not a science fiction as borrowed one of each of the three types. Twenty-one people did not borrow a thriller. One more person borrowed a science fiction book and a biography book than borrowed a biography only.

How many biographies were borrowed in total?
How many people borrowed only two of three types?
How many people borrowed a thriller, a biography and a science fiction?
How many people borrowed a thriller only?

English puzzle

admin — Sat, 26 Dec 2009 05:10:02 +0000

My friend asked me this question: “my grandmother’s age is a perfect square. Also, it is equal to the difference the square of my father’s age and the square of my mother’s age. My father is one year older than my mother. Can you tell me how old my mother is?”

Eureka Puzzle

admin — Tue, 22 Dec 2009 05:24:40 +0000

An electrician’s brother died and left 10 lakh rupees to his only brother. The money was paid out but the electrician did not receive a single rupee. How is this possible?

Metal Detector

admin — Sat, 19 Dec 2009 10:44:33 +0000

A worker has a piece of metal that is 80 cm square. He needs to make an open box that has the greatest possible volume. He cuts equal square pieces from each corner of the sheet and the remaining piece is bent to form an open box.

What size would the box need to be to obtain the maximum possible volume and how much would it hold?

Extra Baggage

admin — Sat, 19 Dec 2009 07:40:33 +0000

When I met Arati, Bharati and Chitra, their respective ages (in years) were in the ratio 5 : 2 : 1 . Their ages in years now are in the ratio of 10 : 7 : 6 . The sum of the ages is 90 years more than the sum of the ages when I first met them. How old are the three women now?