You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

What is both possible and impossible at the same time?

Who is that with a neck and no head, two arms and no hands? What is it?

A large container is kept in open under the rain. Every passing hour, the water collected inside the container becomes double what it was.

In ten hours, the container is filled completely. Can you calculate how long would it have taken to be filled in half?

How can a man go eight days without sleep?

A crime was committed at baker street. Ibrahim Dakota who was shot in the stomach was the main suspect. Sherlock questioned the suspect. The conversation started as:
Sherlock: What's your story, Ibrahim?
Ibrahim: I was walking around baker street and suddenly a man from the back shot me. I ran as fast as I could to save my life".
Sherlock: That is enough (and ask the police to arrest him).

Why does Sherlock think he is the murderer?

John has played 50 ODI's and his average is 50. How many runs should he score in his 51st ODI, so that his average score jumps to 51?