What month of the year has 28 days?

Which number should replace the question mark?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

In the Thar desert, 3 men found a big 24L Jar is full of water. Since there is a shortage of water so they decided to distribute the water among themselves such that they all have equal amounts of it. But they only have a 13L, a 5L and an 11-litre Jar.

How do they do it?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

What has one letter and starts with an E?

A man has to get a fox, a chicken, and a sack of corn across a river.

He has a rowboat, and it can only carry him and one other thing.
If the fox and the chicken are left together, the fox will eat the chicken.
If the chicken and the corn are left together, the chicken will eat the corn.

How does the man do it?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

Once while in his court, King Akbar asked Birbal to write something on a wall that makes one sad when read in good times and makes one happy when read in sad times.

He took only a few moment and wrote something that fit the requirements. What did he write?