What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

Open a Laptop which is password protected. Hint for the password is given as below:

1 mobile 3 books 2 Boards 1 night 4 balls 2 lighters 1 ghost 1 hat 3 watches

Why is a river so rich ?

When monkey rotate the gear, which mark will be hit 1 or 2 ?

What is the next number in this series?

4,12,84,3612....

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

An exterior architect is asked by a builder to plant seven trees in a manner that there are exactly six rows of trees in a straight line and each row has three trees in particular.

How will he do it?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

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

What brings you down but never up?