Find out a multi-digit number that if multiplied by the number 9 or any of its multiplications products (i.e. 18, 27, 36, 45,..) will result in the multiplication factor repeated (n) number of times.

An artist while painting a scenic beauty, decides to paint three layers of blue colour on the sky.

Which layer will go on the first?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

A father's child, a mother's child, yet no one's son.

Who am I?

15 caves are arranged in a circle at the temple of doom. One of these caves has the treasure of gems and wealth. Each day the treasure keepers can move the treasure to an adjacent cave or can keep it in the same cave. Every day two treasure seekers visit the place and have enough time to enter any two caves of their choice.

How do the treasure seekers ensure that they find the treasure in the minimum number of possible days?

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?

Name a key which is hardest to turn.

What animal walks on four legs in the morning, two legs during the day, and three legs in the evening?

Oedipus, the king of Thebes, figured out the answer to the riddle:

They are three errirs in this question. Can you find them?

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?