When can we add 2 to 11 and get 1 as the correct answer?

Can you find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.

What is so fragile that saying its name breaks it?

You are in a room with no metal objects except for two iron rods. Only one of them is a magnet.
How can you identify which one is a magnet?

How far can you walk into the woods?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

I am an eight letter word and I am a computer terminology.
The second, third and fourth letters make an animal.
The fourth, fifth, sixth, seventh and eighth letters make a weapon.
The first, second, third and fourth letters can be taken as an outcome of any exam.
The fifth, sixth, seventh and eighth letter combine to form a high end typing software.

Can you tell who am I ?

Solve below popular number sequence
314 159 265 358 979 323 846 ?