What two things can you never eat for breakfast?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

Once while in his court, King Akbar asked Birbal to write something on a wall that makes one sad when read in good times and makes one happy when read in sad times.

He took only a few moment and wrote something that fit the requirements. What did he write?

Why is a river so rich ?

A large water tank has two inlet pipes (a large one and a small one) and one outlet pipe. It takes 3 hours to fill the tank with the large inlet pipe. On the other hand, it takes 6 hours to fill the tank with the small inlet pipe. The outlet pipe allows the full tank to be emptied in 9 hours.

What fraction of the tank (initially empty) will be filled in 0.64 hours if all three pipes are in operation? Give your answer to two decimal places (e.g., 0.25, 0.5, or 0.75).

Solve the following series:
AZ, GT, MN, __, YB

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

A woman shoots her husband.

Then she holds him under water for over 5 minutes.

Finally, she hangs him.

But 5 minutes later they both go out together and enjoy a wonderful dinner together.

How can this be?

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

I shave every day, but my beard stays the same. What am I?