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

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

How many times in a given day, minutes and hour clock comes in a straight line ?

John buys rice at Rs.60/kg from Britain and then sells them at Rs.5/kg in India. As a result of this, he becomes a millionaire. How come?

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------

How could a baby fall out of a twenty-story building onto the ground and live?

What is the next number in this matchsticks series riddle?

Mr Black, Mr Gray, and Mr White are fighting in a truel. They each get a gun and take turns shooting at each other until only one person is left. Mr Black, who hits his shot 1/3 of the time, gets to shoot first. Mr Gray, who hits his shot 2/3 of the time, gets to shoot next, assuming he is still alive. Mr White, who hits his shot all the time, shoots next, assuming he is also alive. The cycle repeats. If you are Mr Black, where should you shoot first for the highest chance of survival?

I always drive my customer away.

Who am I?

What am I?