Your job is to measure 45 minutes if you have only two cords and matches to light the cords.

1. The two cords are twisted from various materials, so their different segments can burn at different rates.
2. Each cord burns from end to end in exactly one hour.

Describe your way of measuring the 45 minutes.

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

Move three sticks of the spiral below to form a square.

What do you think with the below Picture ?

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

You are trapped in a room with two doors. One leads to certain death and the other leads to freedom. You don't know which is which.
There are two robots guarding the doors. They will let you choose one door but upon doing so you must go through it.
You can, however, ask one robot one question. The problem is one robot always tells the truth, the other always lies and you don't know which is which.
What is the question you ask?

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

If a wheel has 54 spokes, how many spaces are there between the spokes?

How many letters are in the alphabet?

What country can make you shiver?