There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

Before Balboa discovered the Pacific Ocean, which was the largest ocean before that?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

We can be boring,Or interesting.
We can be long,Or short.
We can have pictures,Or just words.
Many love us,But many also hate us.
What are we?

John was visiting his friend Jacob. He found out that his friend's wife had just killed a burglar in self-defense.
John asks Jacob about what happened and he told that "His wife was watching television when suddenly the bell rang. She thought that it is her husband Jacob but she found the burglar who attacked her instantly and she got so frightened that she killed the burglar immediately with the knife.
John asked the police to arrest his friend's wife. Why?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

Why despite killing dozens of people Charley and Wilma were not punished?

It is always ahead of me yet I can never see it. What is it?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

The first box has two white balls. The second box has two black balls. The third box has a white and a black ball.

Boxes are labeled but all labels are wrong!

You are allowed to open one box, pick one ball at random, see its colour and put it back into the box, without seeing the colour of the other ball.

How many such operations are necessary to correctly label the boxes?