Can you convert the number zero(0) into a positive number using just one mathematical operator ?

What does this below rebus puzzle mean?

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.

A California farmer owns a beautiful pear tree. He supplies the fruit to a nearby grocery store. The store owner calls the farmer to see how much fruit is available for him to buy. The farmer knows the main trunk has 24 branches. Each branch has exactly 12 boughs and each bough has exactly 6 twigs. Since each twig bears one piece of fruit, how many plums will the farmer be able to deliver?

What is black when you buy it, red when you use it, and gray when you throw it away?

You have an empty wine bottle with a cork that has been secured at the top in a normal way. There is a metal ring inside the bottle that is suspended by a string.

How can you make the metal ring drop to the bottom if you are not allowed to touch anything - not the bottle, not the cork, not the thread and not the ring?

What is 3/7 chicken, 2/3 cat and 2/4 goat?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

Tell me the Hindi name of a Vegetable which if we remove 1st word will become a precious Stone and by removing the last word it will become a sweet eatable.

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?