Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

If eleven plus two equals one, what does nine plus five equal?

Solve the following series:
AZ, GT, MN, __, YB

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

If an earthquake is 1 point higher on the Richter Scale than another earthquake which is actually 10 times stronger, how much stronger would an earthquake be if it was just half a point higher on the Richter scale?

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

If you say my name, I will no longer exist. What am I?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

In the given picture, you can find two letters missing. When two particular letters are placed in the missing spots, you get an eight-letter word while reading in the anti-clockwise direction. Can you find out the missing letters and the missing word eventually?

In a town, there are four houses located at different distances from each other. Following are the distances:

The third house is 60 meters apart from the first house.
The fourth house is 40 meters apart from the second house.
The third house is 10 meters nearer to the fourth house than it is to the second house.

Can you find out the distance between the fourth and the first house?