Replace the question mark with the correct number below.

What is next number in the pattern below:

131 517 192 123 ?

Bay of Bengal is in which state?

John, Jack and Jill are in a desert. John doesn't like Jill and hence decides to murder him. He poisons the water supply of Jill. Since it is a desert area, Jill must drink or he will die of thirst.

Jack does not know of the actions of John and also decides to murder Jill. To succeed in his ill motives, he removes the water supply of Jill so he dies of thirst.

Jill dies due to thirst. Who murdered Jill?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

What can you see in the middle of March and April that you can never see in any other month?

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

What does the following BrainBat signifies?

ABCDEFGHIJKLMNOPQRSTUVWYZ

QQQQQQQQQQQQQQQQQQQQQQQQQ.

Replace all '*' with digits 1, 2, 3, 4, 5 and 6 to make below statement true.

* *
x *
=====
* * *

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?