When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

Remove two matchsticks to make the below equation correct.

Find the next number in the sequence

1, 2, 6, 21, 88, __?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

Out of three Friends John, Jacob and Jonny one of them is a king, one is a bureaucrat, and one is a Spy.

The king always tells the truth, the bureaucrat always lies, and the Spy can either lie or tell the truth.

John says: Jonny is a bureaucrat
Jacob says: John is a king
Jonny says: I am a Spy

Tell me, Who is the king, who is the bureaucrat, and who is the Spy?

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?

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Find the missing letter in the last circle logically in the given below picture.

You visit a home for specially-abled children on the occasion of Christmas where you meet with 50 children. You have a box of chocolates containing 50 chocolates exactly.

What if you were asked to one chocolate to each child in a manner that one chocolate still remains in the box? Is it possible?