Answer:
Sunday, August 26, 2012
What is the sum of x, y, and z?
In the multiplication puzzle below, x, y, and z represent different digits. What is the sum of x, y, and z?
Answer:
x = 5, y = 6, and z = 4, so the sum is 15.The variable x can be either 0 or 5. It must be 5 because there is no number that ends in 0 when multiplied by 7 (y * 7, resulting in x).Therefore, a 3 is carried over to the y. Since x is 5, y must be 6 because 7 * 6 = 42. Add the 3 that was carried over and you get 45. Therefore, z is 4.
Is to?
Answer:
D: only lines which appear in the same position just twice in the first three squares are transferred to the final square. Only circles which appear in the same position just once are transferred.
Wall-Climbing Machine
 |
| Wall-Climbing Machine
When Harvey Screwbrain invented his wall-climbing machine, everyone
thought it wouldn't work. They were right! Quite simply, there was nothing
to hold the machine onto the wall. But how much of a screwbrain was
Harvey? Did he at least manage to get the wheels that were in contact with
the wall (A and B) to turn the right way? The inside of the machine is shown
above with pulleys (black) and cogs (white).
Which way do wheels A and B rotate?
|
Answer:
Wheels A and B both turn anti-clockwise. So Harvey wasn't so screwy after all!
Tuesday, August 21, 2012
What comes next?
Answer:
The figures at both ends move alternately, first the figure originally on the extreme left moves from left to right, then the figure originally on the extreme right moves from right to left.
Make 1000
In one minute or less, by using eight eights and addition only, make 1000!
Answer:
888 + 88 + 8 + 8 + 8 = 1000
Minimum number of valves!
Each “Y” connection has three valves. Open the minimum number of valves to allow water to flow from the hydrant to the hose. At the beginning, all valves are closed.
Answer:
Answer:
Speed and Visual Test: How many circles?
In 30 seconds, try to detect how many circles are located in the following figure!
Answer:
20 Circles
Answer:
20 Circles
IQ Test: Odd Out!
Which one of these shapes does not belong with the rest?
Answer:
D
Only in Shape D, opposite lines are not equal.
D
Only in Shape D, opposite lines are not equal.
Saturday, August 11, 2012
PERPLEXED BANKER
A man went into a bank with a thousand dollars, all in dollar bills, and ten
bags. He said, "Place this money, please, in the bags in such a way that if I
call and ask for a certain number of dollars you can hand me over one
or more bags, giving me the exact amount called for without opening any of
the bags."
How was it to be done? We are, of course, only concerned with a single
application, but he may ask for any exact number of dollars from one to one
thousand.
Answer:
The contents of the ten bags (in dollar bills) should be as follows: $1, 2, 4, 8, 16, 32, 64, 128, 256, 489. The first nine numbers are in geometrical progression, and their sum, deducted from 1,000, gives the contents of the tenth bag.
Answer:
The contents of the ten bags (in dollar bills) should be as follows: $1, 2, 4, 8, 16, 32, 64, 128, 256, 489. The first nine numbers are in geometrical progression, and their sum, deducted from 1,000, gives the contents of the tenth bag.
Sunday, August 5, 2012
Word Ladder
A Word Ladder, also known as Word Golf, Doublets, and
Word-Links is a word game invented by Lewis Carroll. It
starts with two words and to solve it you should find a chain of common words;
change just one letter on each line to go from the top word to the bottom word.
You should not change the order of the letters.
Example:
Now, try to solve the following Word Ladder in one minute!
Example:
- SNAP
- ----
- ----
- ----
- SHOT
- SNAP
- SLAP
- SLOP
- SLOT
- SHOT
Now, try to solve the following Word Ladder in one minute!
- DEAD
- ----
- ----
- ----
- ----
- ----
- LIVE
Answer:
DEAD
LEAD
LOAD
LORD
LORE
LOVE
LIVE
Three European Countries
This chain of letters contains the names of three European countries; where the letters are in the correct order. Try to identify them in two minutes!
SAWUSTREADILTYEIAN
Answer:
SWEDEN
ITALY
AUSTRIA
Form four 7-letter words
Which 3-letter word can be placed at the start, to form four 7-letter words?
 |
Form four 7-letter words! |
Answer:
FOR
Saturday, August 4, 2012
Ten Apples
In the following picture, there are ten apples. Can you find them in 20 seconds?
 |
| Find Ten Apples |
Answer:
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