How to make a folder invisible.

Click the folder u want to make invisible and press f2 to rename the folder.
press Alt+0160
and then press enter
then the space of the name will be empty.

Now go to properties of the folder, go to customize end then click on 'change icon'
here u can see many icons as well as a blank space .It is an invisible icon.

Now that folder is invisible. You can only realize that icon by selecting the area.

You can make it visible again by reversing the process.

Largest Desert

 Antarctica is considered a desert, with annual precipitation of only 200 mm (8 inches)  With an Area of 14 milliion square kilometres , Antarctica is the World's Largest Desert.


Source : Wikipedia

how far do you know?

How far do u know?

1 Bit = Binary Digit
8 Bits = 1 Byte
1024 Bytes = 1 Kilobyte
1024 Kilobytes = 1 Megabyte
1024 Megabytes = 1 Gigabyte
1024 Gigabytes = 1 Terabyte
1024 Terabytes = 1 Petabyte
1024 Petabytes = 1 Exabyte
1024 Exabytes = 1 Zettabyte
1024 Zettabytes = 1 Yottabyte
1024Yottabytes = 1 Brontobyte
1024 Brontobytes = 1 Geopbyte
1024 Geopbyte=1 Saganbyte
1024 Saganbyte=1 Pijabyte
Alphabyte = 1024 Pijabyte
Kryatbyte = 1024 Alphabyte
Amosbyte = 1024 Kryatbyte
Pectrolbyte = 1024 Amosbyte
Bolgerbyte = 1024 Pectrolbyte
Sambobyte = 1024 Bolgerbyte
Quesabyte = 1024 Sambobyte
Kinsabyte = 1024 Quesabyte
Rutherbyte = 1024 Kinsabyte
Dubnibyte = 1024 Rutherbyte
Seaborgbyte = 1024 Dubnibyte
Bohrbyte = 1024 Seaborgbyte
Hassiubyte = 1024 Bohrbyte
Meitnerbyte = 1024 Hassiubyte
Darmstadbyte = 1024 Meitnerbyte
Roentbyte = 1024 Darmstadbyte
Coperbyte = 1024 Roentbyte

easy logic

 as
11*11=121 so,1+2+1=4
12*12=144 so,1+4+4=9

same like that  
13*13=169 
1+6+9=16


hence,the right answer is 16

Adding Two Digit Numbers Trick

Let us begin with the basic method of adding two numbers
Take the example of 71 + 69

This is the usual method which we do with the help of pen and paper.
Are you interested to do these calculations mentally?
If your answer is yes,then read below to learn the trick.

Birthday Magic Trick

Birthday Magic

Step1: Add 18 to your birth month.
Step2: Multiply by 25.
Step3: Subtract 333.
Step4: Multiply by 8.
Step5: Subtract 554.
Step6: Divide by 2.
Step7: Add your birth date.
Step8: Multiply by 5.
Step9: Add 692.
Step10: Multiply by 20.
Step11: Add only the last two digits of your birth year.
Step12: Subtract 32940 to get your birthday!.

Example: If the answer is 123199 means that you were born on December 31, 1999. If the answer is not right, you followed the directions incorrectly or lied about your birthday.

easiest...

A2N,C4O,E6P,G8Q,?
 
1.I10R
2.110R
3.II0R
4.1I0R

right answer is :

1.I10R