A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

A sundial has the fewest moving parts of any timepiece. Which has the most?

If a wheel has 54 spokes, how many spaces are there between the spokes?

The peacock is a bird that does not lay eggs. How do they get baby peacocks?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

Count the number of triangles in the picture below:

What do you think with the below Picture ?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

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

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).