Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

Replace the question mark in the picture below.

There is a box in which distinct numbered balls have been kept. You have to pick two balls randomly from the lot.

If someone is offering you a 2 to 1 odds that the numbers will be relatively prime, for example
If the balls you picked had the numbers 6 and 13, you lose $1.
If the balls you picked had the numbers 5 and 25, you win $2.

Will you accept that bet?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

One absent-minded ancient philosopher forgot to wind up his only clock in the house. He had no radio, TV, telephone, internet, or any other means for telling time. So he travelled on foot to his friend's place a few miles down the straight desert road. He stayed at his friend's house for the night and when he came back home, he knew how to set his clock. How did he know?

Who are the happiest people in IPL match?

Find the next number in the series.
1 10 24 43 67 ?

What always comes into a house through the keyhole?

Considering the below equation:

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

Then, I + II + III = ?

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?