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).

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

How many triangles can you find in this given picture?

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

John and Jill are madly in love with each other. To remind Jill of his pure love, John wants to send her a ring by post but in their country where burglary is quite prominent, any package that is not locked comes under the risk of being stolen for the contents.

John and Jill possess many padlocks but neither one of them has the other key.

Can you find a way John can send the ring to Jill safely?

The UN Security Council has how many member states?

a) 15
b) 10
c) 20
d) 25

What can you catch but never throw?

If you drop a 15 kg iron bar and a 5 kg bag of cotton from a height of 50 meters which will reach the ground first?

Spot what is wrong here in below Picture?

How many times in a given day, minutes and hour clock comes in a straight line ?