I look at you, you look at me I raise my right, you raise your left. What am I?

At a party, there are five people and a whole round cake lying at the centre of the table. Only four people will make a cut and take their piece and the last one will get the remaining piece on the table. How can they make sure that everyone gets a 1/5th of the piece?

People make me, save me, change me, raise me. What am I?

Before Mount Everest was discovered, what was the highest mountain in the world?

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different. How do you measure 45 minutes?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

When it is alive we sing, when it is dead we clap our hands. What is it?

A man is approaching a broad and barren land. He has a package with him. If somehow, he is unable to open the package before reaching the land, he will die.

Can you guess what is present in the package?

Why do you find that most of the buildings are deprived of the 13th floor?

You are in a room that has three switches and a closed door. The switches control three light bulbs on the other side of the door. Once you open the door, you may never touch the switches again. How can you definitively tell which switch is connected to each of the light bulbs?