What is the longest word in the dictionary?

There is a square piece of paper with a hole that is denoted by the circle on the top right side in the given picture. You have to cut the paper in a manner that it forms two and only two separate pieces of paper and then rearrange the pieces in a manner that the holes come in the centre of the paper.

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?

What occurs twice in a week, once in a year but never in a day?

A deaf and mute man goes to the train station. Tickets for the train are 50 cents each. The man goes to the ticket booth and hands the man inside just a dollar. The man in the booth hands him two tickets.

How did the man in the booth know to give him two tickets without even looking at him?

No one wants to have it, but if one got it, he does not want to lose it. What is It?

In a jungle where there are no street lights or any other artificial source of lights, I notice a black snake crossing the road.
How did I get sight of the snake?