Puzzle No 8: 

Imagine you are standing in front of a mirror, facing it.Raise your left hand, then your right. Look at your refection. When you raise your left hand your reflection raises what appears to be it's right. but when you tilt your head up, your reflection does too, and doesn't appear to tilt it down. Why is it that the mirror appears to reverse left and right, but not up and down?

Solution : 

The mirror will reflect only for the X-axis and it wont to do so for the Y-axis. Hence it does not reverse for Up and Down.

I got a different answers from my students.... their thinking is so great.... :) 

Winner(S):

1. Mr.S. Rajesh B.E., M.B.A.,

2. V. Abhirami III CSE

3. D. Gnanambika III CSE

4. K.E. Karthiga III CSE

5. Jeya Kumar II CSE


Runner Up:

K. Iniya III CSE

Congrats to everyone :) 

Puzzle No 7 Solution :) 

0 = 44-44
1 = 44/44 or (4+4)/(4+4) or (4/4) / (4/4) or [(4! - 4)/ 4] - 4
2 = 4/4+4/4 or (4²-4-4)/4 
3 = (4+4+4)/4
4 = 4*(4-4)+4
5 = (4*4+4)/4
6 = 4*.4+4.4
7 = 44/4-4
8 = 4+4.4-.4
9 = 4/4+4+4
10 = 44/4.4
11 = 4/.4+4/4
12 = (44+4)/4
13 = 4!-44/4
14 = 4*(4-.4)-.4
15 = 44/4+4
16 = .4*(44-4)
17 = 4/4+4*4
18 = 44*.4+.4
19 = 4!-4-4/4
20 = 4*(4/4+4)
21 = (4.4+4)/.4
22 = 44*sqrt(4)/4
23 = (4*4!-4)/4
24 = 4*4+4+4
25 = (4*4!+4)/4
26 = 4/.4+4*4
27 = 4-4/4+4!
28 = 44-4*4
29 = 4/.4/.4+4
30 = (4+4+4)/.4
31 = (4!+4)/4+4!
32 = 4*4+4*4
33 = (4-.4)/.4+4!
34 = 44-4/.4
35 = 44/4+4!
36 = 44-4-4
37 = (sqrt(4)+4!)/sqrt(4)+4!
38 = 44-4!/4
39 = (4*4-.4)/.4
40 = 44-sqrt(4*4)
41 = (sqrt(4)+4!)/.4-4!
42 = sqrt(4)+44-4
43 = 44-4/4
44 = 44.4-.4
45 = 4/4+44
46 = 44-sqrt(4)+4
47 = 4!+4!-4/4
48 = 4*(4+4+4)
49 = (4!-4.4)/.4
50 = 4!/4+44

Winner(s):

1. Iniya III CSE
2. Gnanambika III CSE
3. V. Abhirami III CSE :)

Runner up:

1. Jeya Kumar II CSE


Congrats students :)

But my humble request pls don't refer any resource for getting answers..... here answer is not important.... i m expecting ur interest and hard work ... participation is more impt than winning.... so pls keep try.... Spend ur valuable time to solve the problem , not by surfing the net for solution :)

And here i want to share one of my student's comments regarding this 4444 puzzle :) 

"Kanna mudinale no 4 dhan ninaivuku varum" - by Gnanambika :) "

Puzzle No 7:

Use exactly four 4's to form every integer from 0 to 50, using only the operators +, -, x, /, () (brackets) x² (square), and ! (factorial).

Example: 0 = 44-44

Deadline: 31.3.2013 at 9pm :)

Puzzle No 6:

Five friends have their gardens next to one another, where they grow three kinds of crops: fruits (apple, pear, nut, cherry), vegetables (carrot, parsley, gourd, onion) and flowers (aster, rose, tulip, lily).

1. They grow 12 different varieties.
2. Everybody grows exactly 4 different varieties
3. Each variety is at least in one garden.
4. Only one variety is in 4 gardens.
5. Only in one garden are all 3 kinds of crops.
6. Only in one garden are all 4 varieties of one kind of crops.
7. Pear is only in the two border gardens.
8. Paul's garden is in the middle with no lily.
9. Aster grower doesn't grow vegetables.
10. Rose growers don't grow parsley.
11. Nuts grower has also gourd and parsley.
12. In the first garden are apples and cherries.
13. Only in two gardens are cherries.
14. Sam has onions and cherries.
15. Luke grows exactly two kinds of fruit.
16. Tulip is only in two gardens.
17. Apple is in a single garden.
18. Only in one garden next to Zick's is parsley.
19. Sam's garden is not on the border.
20. Hank grows neither vegetables nor asters.
21. Paul has exactly three kinds of vegetable.

Who has which garden and what is grown where?

Solution:

Hank:	pear	apple	cherry	rose
Sam:	cherry	onion	rose	tulip
Paul:	carrot	gourd	onion	rose
Zick:	aster	rose	tulip	lily
Luke:	pear	nut	gourd	parsley

Winners:

1. Abhirami III CSE

2. Gnanamnika III CSE

3. Nivetha III CSE 

4. Iniya III CSE

5. K.E. Karthiga III CSE

6. Krishana Kala III CSE

7. Jeya Kumar II CSE

And i m really so happy :) salute to ur hardwork... :) 

Puzzle No 6:

Five friends have their gardens next to one another, where they grow three kinds of crops: fruits (apple, pear, nut, cherry), vegetables (carrot, parsley, gourd, onion) and flowers (aster, rose, tulip, lily).

1. They grow 12 different varieties.
2. Everybody grows exactly 4 different varieties
3. Each variety is at least in one garden.
4. Only one variety is in 4 gardens.
5. Only in one garden are all 3 kinds of crops.
6. Only in one garden are all 4 varieties of one kind of crops.
7. Pear is only in the two border gardens.
8. Paul's garden is in the middle with no lily.
9. Aster grower doesn't grow vegetables.
10. Rose growers don't grow parsley.
11. Nuts grower has also gourd and parsley.
12. In the first garden are apples and cherries.
13. Only in two gardens are cherries.
14. Sam has onions and cherries.
15. Luke grows exactly two kinds of fruit.
16. Tulip is only in two gardens.
17. Apple is in a single garden.
18. Only in one garden next to Zick's is parsley.
19. Sam's garden is not on the border.
20. Hank grows neither vegetables nor asters.
21. Paul has exactly three kinds of vegetable.

Who has which garden and what is grown where?

Its tough to solve..... but i think u can :) 

Deadline: 30.3.2013 at 10 pm .... ( 1 hr extra :) )

Puzzle No 5: 

You have a basket containing ten apples. You have ten friends, who each desire an apple. You give each of your friends one apple. After a few minutes each of your friends has one apple each, yet there is an apple remaining in the basket.

How?

(Caution: LOGIC)

Solution:
You give an apple each to your first nine friends, and "a basket with an apple to your tenth friend"

Each friend has an apple, and one of them has it in a basket.

Winners:

1. Mr.K.Rasakumar (HP)

2. Dhanraj II CSE

3. Gnanambika III CSE

4. Nivetha III CSE

5. V.Abhrami III CSE


Runner up:

1. Iniya III CSE

Congrats :)

Puzzle No 5: 

You have a basket containing ten apples. You 

have ten friends, who each desire an apple. You 

give each of your friends one apple.

After a few minutes each of your friends has 

one apple each, yet there is an apple remaining 

in the basket.

How?

(Caution: LOGIC)

Deadline: 29.3.2013 at 9pm :)

Puzzle No 4(Solution):

First of all Sorry for the delay .... :(

Choose the Right Symbol Puzzle...

What mathematical symbol can be put between 5 and 

9, to get a number bigger than 5 and smaller than 9? 

(Caution: Trick)

Answer: The Symbol is : " . (DOT) "

Winner(s):

1. Gnanambika III CSE
2. Iniya III CSE
3. Santhiya Lakshmi III CSE
4. Mr.Rasakumar (HP) :)


Runner(s):
1. V. Abhirami III CSE
2. N.K.Nivetha III CSE
3. Krishna III CSE 

( u had posted different answers, but i said that its a mathematical symbol not numbers ok :) but its a good try...keep it up...

 Good Response from ur side students :)
Thanku..... :)

Puzzle No 4:

Choose the Right Symbol Puzzle...

What mathematical symbol can be put between 5 and 

9, to get a number bigger than 5 and smaller than 9? 

(Caution: Trick)

Deadline : 27.3.2013 at 9pm

Puzzle No 3: Ad Creation :)

Winner(S):  

1. V. Abhirami III CSE :)   
               - Best Wordings 
               - Chocolate Ad

2. Gnanambika III CSE :)   
               - Best Images & Perfect Creation 
               - Pendrive Ad 
3. Santhiya Lakshmi III CSE :) 

               - Simple & Perfect Sentences 
               - Chocolate & Pen Ad

My suggestion(s):

1. No Product is in your own name. (Major Drawback)

2. U can expose Your creativity by applying simple words rather than paragraphs.

3. And No Continuity among products. 

4. Listen & Watch the Creative ads ... u can get a better idea :)

and Here i have added some best ads for your view... 

Limkokwing University

Ariston Washing Machine

Honda- The Cog

Cheese Ad

Coca-Cola

Panda Products Ad

But Still its a good try :) Congrats :)

Puzzle  No 2:

"What day do you go back to school, devi?" asked her grandmother one day.

"Well," devi replied, "Nine days ago, the day before yesterday was three weeks before the second day of term."

If devi had this conversation on a Sunday, what day of the week did she start school?

Our Solution:

Today is Sunday.

So seven days ago was Sunday too. That means that NINE days ago was Friday.

On Friday, the day before yesterday was Wednesday.

Three weeks later is Wednesday again.

That is the second day of term.

So the term began on Tuesday. 

Winners:

1. Gnanambika III CSE

2. Iniya III CSE

3. Santhiya Lakshmi III CSE :)

Keep Rocking :)

Puzzle No 1:

Why "L" is Green?

&

Why "O" is Orange instead of "Yellow"? 

Answer: GOOGLE

Winner(S):  

1. Vaishali III CSE :) 

2. Iniya III CSE :)

3. Gnanambika III CSE :)

4. Santhiya Lakshmi III CSE :)

Wishes from Heart :)

I Congratulate Ms.D.Gnanambika & Ms.V.Abhirami of III CSE from Sri Vidya College of Engg & Tech, who got First Prize in "Best Event Manager" on 15.3.2013 held at Raja College of Engineering & Technology, Madurai.

Keep Rocking :) 

Computer Organization and Architecture

A One Day Seminar on "What's HOT @ GOOGLE" on 21.3.2013 at Sri Vidya College of Engineering and Technology, Virudhunagar - organized by Department of Computer Science and Engineering.

Please Click Here for Brochure Download

We Welcome U all :)