Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

You see me once in June, twice in November, and not at all in May. What am I?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

John can eat 27 chocolates in an hour, Jacob can eat 2 chocolates in 10 minutes, and Jolly can eat 7 chocolates in 20 minutes. How long will it take them to share and eat a box of 120 chocolates whilst playing Chess?

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

John was working on a Chemical Mixture whose weight comprise 90% liquid and 10% solid. The total weight of the mixture is 20 pounds. After a while, John noticed that some of the liquid evaporated and now the liquid comprises just 50% of the weight.

What is the weight of the chemical mixture now?

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?