why number 8549176320 is one of a kind?

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?

What does this Rebus Picture means ?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?

How many triangles can you find in this given picture?

Which fur should we be getting from the Lion?

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?