What month of the year has 28 days?

Twice ten are six of us,

Six are but three of us,

Nine are but four of us;

What can we possibly be?

Would you know more of us?

Twelve are but six of us,

Five are but four, do you see?

What are we?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

What is next number in the pattern below:

131 517 192 123 ?

What does this below rebus puzzle mean?

What word begins and ends with an E, but has only one letter?

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

You can see three almost identical images below. Can you spot the odd one out from them?

Who are the happiest people in IPL match?

100 prisoners are stuck in the prison in solitary cells. The warden of the prison got bored one day and offered them a challenge. He will put one prisoner per day, selected at random (a prisoner can be selected more than once), into a special room with a light bulb and a switch which controls the bulb. No other prisoners can see or control the light bulb. The prisoner in the special room can either turn on the bulb, turn off the bulb or do nothing. On any day, the prisoners can stop this process and say "Every prisoner has been in the special room at least once". If that happens to be true, all the prisoners will be set free. If it is false, then all the prisoners will be executed. The prisoners are given some time to discuss and figure out a solution. How do they ensure they all go free?