consider that we have a wire made of a very flexible material. the length of wire is L, and the diameter is D.

now if this wire was to be wound in a tight spiral around a rod of diameter say X, then is there any mathematical formula of knowing what the max diameter of the spiral coil will be.?]]>

Trispokedovetile tessellation by Peter Dow, on Flickr

which is a tessellation of this tile shape,

...

Geometry. Three-spoke dovetailing tile tessellation. "Trispokedovetile"?]]>

try solving this!!]]>

That is, a positive integer number can be analyzed as one of three following rules

- the sum of a prime number and a Fibonacci number

For example

16 = 11 (prime) + 5 (Fibonnaci)

61 = 59 (prime) + 2 (Fibonacci)

- or a prime number minus a Fibonacci number

For example

59 = 61 (prime) – 2 (Fibonacci)

83 = 227 (prime) – 144...

The relationships between Prime number and Fibonacci number]]>

What is the size of the largest regular hexagon that can be constructed inside a square with side-length 's'?

Crack it fast, please.]]>

2.I have a wooden cube 3 on a side and a buzz saw.The cube can be cut into 27 one inch cubes by the buzz saw.Only 6 cuts of saw are necessary to make 27 one inch cubes keeping the pieces of cubes together.Can you reduce the no of cuts by rearranging the piecess after each cut??If yes, how is it done??If no,why cant it be done??

3. Find the largest possible...

four numbers such that the sum of every two numbers & sum of all four numbers may be perfect square]]>

- Cryogenic Engine
- Steam Engine
- Four Stroke I.C. Engine
- Train Engine

2. The name of this person is Steve. He co-founded a successful internet business and sold it off in early 2000s. Who is this?...

11th Anniversary Quiz - [Correct Answers]]]>

then

SHAWANDA= ?]]>

A lady buys goods worth Rs. 200 from a shop. (shopkeeper is selling the goods with zero profit).

The lady gives him Rs. 1000 note. The shopkeeper gets the change from the next shop and keeps Rs. 200 for himself and returns Rs. 800 to the lady.

Later the shopkeeper of the next shop comes with the Rs. 1000 note saying "duplicate" and takes his money back.

How much LOSS did the shopkeeper face?

The answers that people came up with were - Rs....

The Lady, The Shopkeeper And A Fake Note - Find the Loss]]>

There are three friends Aditya, Bishnu and Charles. They go on a picnic to the Corbett National Park. Aditya buys five sandwiches and Bishnu purchases three for some amount. These were shared by all three equally and Charles paid Rs.4...

Apptitude problem]]>

How many runs a single player can score in One day match (50 overs/ 300 balls)

No 'no balls', no wides, no extras, no over throws...So how much runs he can score max???

Choices :

A) 1800. B) 1650. C) 1653. D) 1550. E) 1555 F) 1506

What is the max runs one can score in a 50 overs match?]]>

A Professor and a lady are travelling in a train. They get around talking and the lady decides to give a puzzle to the Prof. She tells him that she has 3 children whose product of ages is equal to the maximum number of runs possible to score in an over without any illegitimate ball being balled (i.e. NB, Wide, etc). Also, the sum of their ages is equal to her berth number. However, the professor isn't able to answer. The...

Interesting puzzle, can you crack it?]]>

The Game: A question is asked and 4 option will be given out of which only option is correct and you have guess which is correct and there are some lifelines if case you have doubt to help you to guess...

KBC (Kaun Banega Crorepati) Double Dip vs. 50/50]]>

While the men slept, three owls, one above each philosopher, completed their digestive process, dropped a present on each philosopher's forehead, the flew off with a noisy "hoot."

Perhaps the hoot awakened the philosophers....

Greek Philosophers Puzzle: Why did he stop laughing?]]>

John walk upwards on an escalator, with a speed of 1 step per second. After 50 steps, he was at the end. He turned around and ran downwards with a speed of 5 steps per second. After 125 steps, he returned at the beginning of the escalator.

Can you help John finding out how many steps he needed if the escalator would have stood still?

a)125

b)100

c)200

d)none

stay tuned for more puzzles in future..]]>