Astrology starts with the alphabet A, Biology starts with B, Psychology with P and Limnology with L.

Can you find an "ology" that begins with a P?

You throw me out when you want to use me and you take me in when you don't want to use me.

Who Am I?

What is both possible and impossible at the same time?

Eight of us go fourth, not back, to protect our king from an attack. What are we?

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

During which month do people sleep the least?

Can you replace the X (both small and big x) with the numbers between 1 to 19 such that all the rows of 3 numbers between X (big x) sum to 23?

You are trapped in a room with two doors. One leads to certain death and the other leads to freedom. You don't know which is which.
There are two robots guarding the doors. They will let you choose one door but upon doing so you must go through it.
You can, however, ask one robot one question. The problem is one robot always tells the truth, the other always lies and you don't know which is which.
What is the question you ask?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?