why number 8549176320 is one of a kind?

Before Mount Everest was discovered, what was the highest mountain in the world?

A donkey is behind another donkey
I'm behind that second donkey
But there is a whole nation behind me

It is a murder you can describe in a word.

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

What does below chemistry rebus means?

Every words stands for unique digit that makes the arithmetic equation true

SEVEN + SEVEN + SIX = TWENTY.

What are the digits ?

Rob is taller than Edwin, and Jurgen is shorter than Rob.
Of only one of the following statements, we now certainly know it is correct:

A.Edwin is taller than Jurgen
B.Jurgen is taller than Edwin
C.It cannot be determined if Jurgen or Edwin is the tallest.

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

There are two words one resembles the "state of rest" and the other is related to "writing/reading material".

Can you name these two words which also sound similar?

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