What does below chemistry rebus means?

An old Woman left INR 33,333 to be divided equally among two fathers and two sons and each was to receive INR 11,111.
How was this possible?

There are two insects on a tile. Insect X is sitting on one side of the tile (point A) and Insect Y is sitting opposite on the other side of the tile (point B). Now both of them decide to change their position and thus X starts crawling to point B and Y starts crawling to point A. When they meet and pass each other in between, X takes 20 seconds to reach B and Y takes just 5 seconds to reach A.

Can you calculate the total time each of the insects took to change their positions?

what's the probability of getting a king or a queen from a pack of 52 cards?

By what process could you make a 'Tea-Table' into food?

Can you solve below mathematical equation?

2^1234 - 2^1233

Can you make the number 24 by utilizing the numbers 1, 3, 4 and 6? You must use one number only one time and you can use mathematical operation symbols anytime anywhere.

If eleven plus two equals one, what does nine plus five equal?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

How many triangles are there on the puzzle below?