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

? : 3839 :: 11 : 1209

The first box has two white balls. The second box has two black balls. The third box has a white and a black ball.

Boxes are labeled but all labels are wrong!

You are allowed to open one box, pick one ball at random, see its colour and put it back into the box, without seeing the colour of the other ball.

How many such operations are necessary to correctly label the boxes?

Can you find out the total number of triangles in the given figure?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

Replace each alphabet with the number (1-9) to make the below equation correct.

AB * C = DE - F = GH / I

Considering the below equation:

V + II - VI = 10
IV - X + VIII = 20
IV - VII + VI = 30

Then, I + II + III = ?

A man was just doing his job when his suit was torn. Why did he die three minutes later?

You and your two friends are working in a multinational company. How can you three find out the average salary of you all without disclosing your own salary to the other two?

The peacock is a bird that does not lay eggs. How do they get baby peacocks?

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?