The 15 Crows



If there are fifteen crows on a fence and the farmer shoots a third of them.

How many are left?

Ah! Click here to read the solution.

This one is tricky and at the same time very easy.

Zero crows are left.

The crows all flew away when they heard the farmer shooting his gun. 🙂



Brain Teaser

The Liars Twins



You are ill and travelling down a road to the hospital.

You reach a fork in the road and find a pair of identical twin boys standing there.

One of the twins always tells the truth and the other twin always lies.

You are allowed to direct only one question to one of the twins, and as such you will be assured of the correct road to the hospital.

What is your question and to whom?

Ah! Click here to read the solution.

This one is becoming a classic brain teaser.

You ask either of the twins: “If I asked your twin which path to take to get to the hospital, which way would he tell me to go?”

And then I would go in the opposite path of the one I’m told.

Because:

  1. If I’m talking to the truth telling twin, then he will tell me what his twin would say, which would be a lie. So the direction indicated would be wrong.
  2. If I’m talking to the lying twin, then he would lie about what his twin would say, which would be the truth. So the lying twin would still indicate the wrong path



Brain Teaser