Why is the longest human nose just 11 inches?

You are trapped in a room with two doors. One leads to certain death and the other leads to freedom. You don't know which is which.
There are two robots guarding the doors. They will let you choose one door but upon doing so you must go through it.
You can, however, ask one robot one question. The problem is one robot always tells the truth, the other always lies and you don't know which is which.
What is the question you ask?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

Identify the hidden meaning behind this picture?

If Japan and Panama decided to merge into a single country, probably people will name it Japanama.

Can you think of two more such country's unions that could produce similar names like Japanama by overlapping their three letters?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

What does the below rebus puzzle mean?

A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?

What is the riddle which can be asked all day with a different correct answer each time.

What is the next number in this matchsticks series riddle?