I travel all around the world but always stay in the corner. What am I?

What is always in front of you but can’t be seen?

What has to be broken before you can use it?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

A guard is positioned at the one side of the bridge saying ‘A’. His task is to shoot all those who try to leave from ‘A’ to the other side and say ‘B’. He also need to welcome the person who comes from another side ‘B’ to his side ‘A’. The guard comes out of his post every 1 hour and looks down the bridge for any people trying to leave. You are at side ‘A’ and wish to go to another side ‘B’. you also know that it would take 1:45 hr to cross the bridge. How will you cross the bridge?

Today is a very icy and cold morning in Newcastle. Mr Shearer, an office bus driver arrived to pick up the employees from the last stop. Shearer suddenly remembers that he needs to pick a newly joined 4miles to the north. Mr Shearer lost his direction compass, a few minutes later Shearer is able to figure that he is moving in the correct direction i.e. north. How did Shearer know that he is moving in the correct direction?

You need to remove two matchsticks to make the below equation true. Can you do it ?