Replace the question mark with the correct number, given the pair of numbers exhibits a similar relationship?

? : 3839 :: 11 : 1209

A thief enters a store and threatens the clerk, forcing her to open the safe. The clerk says, “The code for the safe is different every day, and if you hurt me you’ll never get the code.” But the thief manages to guess the code on his own. How did he do it?

Can you count the number of triangles inside a triangle?

I can be made.
I can be cracked.
I can be told.
I can be played.

Who am I?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

Do You See It?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

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?

Can you find the mistake in the below statement?

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?