What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

How many words can a quill made with the feather of a pigeon write with a 100ml bottle of black ink?

What is both possible and impossible at the same time?

Which part of London exists in France as well ?

What is the next number in this series?

4,12,84,3612....

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

As a whole I am both
safe and secure.

Behead me and I become
a place of meeting.

Behead me again and I am
the partner of ready.

Restore me, and I become
the domain of beasts.

What am I?

It spends most of its day eating white, but when it’s quick enough, it gets to eat fruit and sometimes some blue things. It’s in a dark room, where the walls are blue, it runs from a ghost that roams the halls and haunts it all the time. What is it?

I never was there, I am always to be.
You have never ever seen me, not ever you will.
Yet I am the confidence of everyone.

Who Am I?

The following four words might seem abrupt to you. But you can make them meaningful by just adding vowels.
RDSH
GGPLNT
TMT
NN

Hint: All of them are vegetables.