Rearrange the letters in "new door" to make one word.

How many sides does a circle have?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

You and your two friends are working in a multinational company. How can you three find out the average salary of you all without disclosing your own salary to the other two?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?

Christina is older than Kareena and Karishma. Katrina is older than Karishma and younger than Kareena. If Kareena has a brother named John, who is older than Christina, who's the youngest?

Three brothers Jacob, John, and James live in Mexico City. The product of the ages of these brothers is 175. Jacob and John are twins. How old is James?

John was piloting a plane behind a car but was never able to overtake it. Why?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?