If you say my name, I will no longer exist. What am I?

What do the following words have in common?

Assess
Banana
Dresser
Grammar
Potato
Revive
Uneven
Voodoo

Find out the missing number in the picture attached:

In order to complete the racing competition, the Mexico racetrack has to submit its top and the most famous three horses to win the competition. Due to an electrical storm, all the records are cleared and no one knows which horse holds the record. They all look identical and it becomes even more difficult to differentiate the horses. There are 25 horses in the Mexico racetrack. But there can be only five horses at a time on the track. What will the least number of races that can be conducted to find out the three fastest horses?

Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?

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

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

You see me once in June, twice in November, and not at all in May. What am I?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?