Can it be possible to build a house that has all its four walls facing towards the South?

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

Which tank will fill first?

Eight of us go fourth, not back, to protect our king from an attack. What are we?

Find the value of "a" by solving the maths equation in the picture below:

Out of three Friends John, Jacob and Jonny one of them is a king, one is a bureaucrat, and one is a Spy.

The king always tells the truth, the bureaucrat always lies, and the Spy can either lie or tell the truth.

John says: Jonny is a bureaucrat
Jacob says: John is a king
Jonny says: I am a Spy

Tell me, Who is the king, who is the bureaucrat, and who is the Spy?

What does this rebus picture identify?

I always drive my customer away.

Who am I?

What is the last thing you take off before bed?