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

To attend world science seminar, A famous chemist from Mexico visit
London. In the lab, the scientist was killed and his six assistants were under suspicion of killing the chemist.
Name of six assistants: Austin, Wayne, Dege, Oscaru, Lingard, and Rojo.
He left a note "76-20-44 79-16-22-7"

A local detective Jack was called to solve the case,

After reading the note, Jack instantly asked the police to arrest the murderers.

Who are the murderers?

How can a man go eight days without sleep?

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 it be possible to build a house that has all its four walls facing towards the South?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

Can you find the odd one out from the below words ?

First Second Third Forth Fifth Sixth Seventh, Eighth Nine Ten Eleven Twelve.

There are two dice with empty faces in front of you and a marker. You can mark any number on each of the faces of the two dice, but you have to display all 31 days of the month using the two of them.

Which numbers will you mark on which dice so that you can easily depict all the dates of the month?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?