A man dies of old age on his 25 birthday. How is this possible?

Solve the puzzle by telling what does below picture means.

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

What month of the year has 28 days?

There are three boxes on a table. One of the box contains Gold and the other two are empty. A printed message contains in each box. One of the message is true and the other two are lies.

The first box says "The Gold is not here".

The Second box says "The Gold is not here".

The Third box says "The Gold is in the Second box".

Which box has the Gold?

Can you count the number of quadrilaterals in the picture below?

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

How many words can a pen with half refill write?

Why do you find that most of the buildings are deprived of the 13th floor?