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

I inserted a coin in a bottle and closed its mouth with the help of a cork. Now, I was able to take the coin out from the bottle without taking out the cork or breaking the bottle. Can you tell me how I did it?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

Can you make the below equation true by using any three numbers from "1, 3, 5, 7, 9, 11, 13 and 15"?

( ) + ( ) + ( ) = 30

What is the next number in this series?

4,12,84,3612....

Aman has 1.15 rupees in his pocket. There are a total of 6 coins in his pocket.

When his friend asked him for a change, he could not give change for a rupee and five paisa.

Can you tell which coins he has?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

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?