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

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).

Can you find the key in the picture below?

If 2 workers can complete painting 2 walls in exactly 2 hours.

How many workers would be needed to paint 18 walls in 6 hours?

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

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

There is an exact a week gap between Christmas and New Year. Hence, It is obvious that the new year that comes right after Christmas comes on the same day of the week.

A Strange thing happened in the Year 1777. Christmas occurs on Wednesday and New Year on Monday. How is that possible?

There is something which you can be arrested for attempting but not for successfully completing.

There is a place where if I stand up straight, I will still be considered sideways.

What number do you get when you multiply all of the numbers on a telephone's number pad?