Why do you find that most of the buildings are deprived of the 13th floor?

If Rajina's daughter is my daughter's mom, who am I to Rajina?

A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.
Where's the father?

John was drowned by he was not wet. How?

I organized a small get together at my home.
In the party , i have a barrel with some whiskey in it.

Suddenly Guest 1 say 'I bet this barrel of whiskey is more than half full'.
'No, it's less than half full' Guest 2 replied.

I don't have any measuring instrument and without removing whiskey from it , how can i determine which of the guest is right ?

You are in a room with no metal objects except for two iron rods. Only one of them is a magnet.
How can you identify which one is a magnet?

Can you decipher the below rebus?

PBLUESAISNUERSES

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

Which of the following words don't belong in the group and why?
CORSET, COSTER, SECTOR, ESCORT, COURTS