Can you make a six-letter word using the letters N, A and B ?

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?

What is the next number in the series?

15 29 56 108 208 ?

Replace the question mark in the picture below.

In the following picture, E is going to slide the object down and as per the terrain and the physics, the round object is going to travel all the way till the end. Now, can you analyze who all people will die when it happens?

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Why Aeroplane windows are round?

If,

A + B = C
D - C = A
E - B = C

Based on the above equations, find out the answer for:

D + F = ?

What is the next number in this series?

4,12,84,3612....

John has eleven friends. He has a bowl containing eleven apples. Now He wants to divide the eleven apples among his friends, in such a way that an apple should remain in his bowl.
How can He do it?