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Guest Message by DevFuse


Member Since 05 Dec 2012
Offline Last Active Feb 28 2015 06:06 PM

#340562 Precast

Posted by TimeSpaceLightForce on 11 October 2014 - 10:06 AM

An engineer designed an open box mold for concrete mix pouring.
By cutting the standard 4" x 8" G.I. sheet with the right pattern he
then bend and weld  to produce maximized weight concrete blocks,
how was it done?  What is the precast volume?

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#340471 Pecular Spectra

Posted by TimeSpaceLightForce on 02 October 2014 - 10:07 PM

Three interstellar stations have observed a distant cluster of gas clouds
known as RGB-9. The stations are positioned at right angle with each
other. The photograph images captured by X,Y, & Z telescopes at the same
instant are having exactly the same configurations (see below). Some of
the gas clouds that are behind the other cloud emits a mixed spectrum..
How shall they construct the 3-D plot of the cluster?
rgb clouds.jpg

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#339558 Days of Dates

Posted by TimeSpaceLightForce on 17 August 2014 - 04:44 PM




What calendar year represent the figure above?

  • -1

#338948 nice dice

Posted by TimeSpaceLightForce on 07 July 2014 - 06:56 PM

nice dice.png
Everyday, six prisoners: numbered #1 #2 #3 #4 #5 #6 were randomly
locked-up inside six prison cells: [1] [2] [3] [4] [5] [6]...
No one have any information about the other locked-up prisoners.
They do not have any means of communications once inside the closed room.
During a dinner the warden offered the prisoners to participate in a game of chance. 
Anyone who can guess all the prisoner's # in every prison cell correctly 
shall be freed together with one of the other prisoners he selects. 
If the guess is wrong, both of them shall be hanged.
Anyone who wont guess will be hanged.
For accepting his challenge he would grant the prisoners request that 
one of the prison cells must contain a boxed dice to play and share.
Provided they can only send it once to other cell and received it once 
from other cell with the assistance of prison guard.
The six prisoners talked it over and all agreed to take the challenge.
On the next day they were all  locked-up with  blindfold ..
but they were all saved by the dice.
How can this be done? 

  • -1

#338618 Precision Watch

Posted by TimeSpaceLightForce on 12 June 2014 - 06:36 PM

At 12 minutes before 7 o'clock,
the watch has stopped and needed to be rewind.
But obviously the second hand is offset by +7 secs..
so it must be corrected before it runs again.
To adjust just rotate the second hand clockwise and
the hour hand will rotate likewise with the same angle.
Rotate the second hand counterclockwise and the
minute hand will rotate likewise with the same angle.
At what precise time of the watch should it be rewind?

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#338570 Pendulum Watch

Posted by TimeSpaceLightForce on 05 June 2014 - 09:54 PM

It is 12MN when  all the hands of this unusual watch rotates clockwise at proper speeds. 
But all the hands runs in opposite direction when they strike 12..like a pendulum.
What is the real time if it reads false as shown below ?

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#338537 Riffle Shuffle

Posted by TimeSpaceLightForce on 02 June 2014 - 06:48 PM

Spoiler for unsuspected

  • -1

#338186 Wrist Watch

Posted by TimeSpaceLightForce on 01 May 2014 - 09:20 AM


A strange wrist watch have it hands separated equally on 9:05:25 am..and seem to be working properly.

The second hand  runs at 1 rev per minute , the minute hand runs at 1 rev per hour while the hour hand runs 2 rev per day.

But everytime the hands overlaps they switch rotational speed.. Can you tell the rotational speeds of each hands when its

11:11:11 pm?


Does "when its 11:11:11 pm" refer to the actual time, or to the position of the hands?


PM as in real time because when its 11:11:11 pm actual time, the 3 hands must be on "specific" angles..It can not be 2:56:11 or 11:11:10 or 2:10:56 actual time.
The hands' positions on 9:05:25am is same as 9:05:25pm (actual time) so the are actually around 2hrs,6min to figure this out..

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#338169 White & King

Posted by TimeSpaceLightForce on 29 April 2014 - 03:10 PM



From a game start setup ,how is it possible to arrive at the position shown above with only Black's 15 moves?

  • -1

#337877 Weighing Bells

Posted by TimeSpaceLightForce on 23 March 2014 - 06:38 PM

On each pan of the tri-beam scale are 3 seemingly identical bells that are balanced with the other pan bells.


A) Sort out the bells-3 light bells (L=1) and 3 heavy bells (H=3) from Normal bells (N=2) by using the scale .
    How many times will it take to identify their weights?

B) When you got a desired outcome on the first weighing ,how can  all the bells  be sorted on the 2nd weighing?
    The scale works as follows:
    1)Balanced : 3 weights on pans are equal                 ex. 6 : 6 : 6
    2)One pan down : Only the heaviest                         ex. (5):3 :2  , (5):1:1
    3)One pan up : 2 heavier weights are equal               ex. (3):4 :4

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#337556 Bake it

Posted by TimeSpaceLightForce on 26 February 2014 - 10:58 PM

Host ask each of 4 guests to make
a single slice on a whole round cake,
so that they all have a  1/5  piece  to take.
How they'll do that for fairness sake?


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#337446 Pocket Watch

Posted by TimeSpaceLightForce on 20 February 2014 - 09:57 PM

A pocket watch without numbers was rotated..


What  is the time if the colored dials are the
hour,second & minute hands of the watch??

Spoiler for Hint







Note:   Idea from BMAD & Bonanova

  • -1

#337330 The Magnetized Coin

Posted by TimeSpaceLightForce on 07 February 2014 - 11:23 AM

One of the 12 identical coins was magnetized so that it weighs
heavier on one face and lighter on the other when placed on
a certain weighing scale. But it weighs normal like the other coins
when it is standing balanced on its side or edge.

Find out which coin is it using the weighing scale 3 times.

@@@@        ===================
@@@@                   [________]








  • 1

#337205 Greeting Time

Posted by TimeSpaceLightForce on 17 January 2014 - 06:41 PM

Spoiler for I'll take a stab...

yes for 3 digits, but fewer

  • 0

#337160 What is the hidden number?

Posted by TimeSpaceLightForce on 07 January 2014 - 04:52 PM

        6      11


9      ?       7       12

       10     15

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