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).

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

Can you Find and name the hidden bird in the picture below ?

Can you write down eight eights so that they add up to one thousand?

Why is the Hole below a Lock?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

A man was going to bleach his socks because they had gotten muddy the day before. As he was pouring the bleach into the washing machine, he spilt some on the floor. He got some cleaning fluid and mopped it up with a rag. Minutes later he was dead. What killed him?

Look at the picture and find out which square is not linked with any of the other squares.

I can sizzle like bacon,
I am made with an egg,
I have plenty of backbone, but lack a good leg,
I peel layers like onions, but still remain whole,
I can be long, like a flagpole, yet fit in a hole.