I am the largest in my family of fifty.
The youngest of our family lives separately from the rest of the family and so do I.
I am regarded as harsh and tough.
I am so large, you cut me in two equal halves,
each half would still be larger than the second largest member of the family.
Who am I?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

You have an empty wine bottle with a cork that has been secured at the top in a normal way. There is a metal ring inside the bottle that is suspended by a string.

How can you make the metal ring drop to the bottom if you are not allowed to touch anything - not the bottle, not the cork, not the thread and not the ring?

You and your two friends are working in a multinational company. How can you three find out the average salary of you all without disclosing your own salary to the other two?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------

A girl rode into a tourist spot out of the city on Thursday. She loved the place and decided to stay for a few days. She stayed for four days and then she left for back home on Thursday.

How can this be possible?

Solve the following series:
AZ, GT, MN, __, YB

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