Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

It has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

A man has eighty-one cows ( numbered 1,2,3...81 as such). The beauty is that cow no. 1 gives 1ltr of milk, cow no. 2 gives 2ltrs of milk and so on. The man wants to equally distribute the cows among his nine sons so that each one of them gets the same quantity of milk.

Why are televisions attracted to people?

John has eleven friends. He has a bowl containing eleven apples. Now He wants to divide the eleven apples among his friends, in such a way that an apple should remain in his bowl.
How can He do it?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sisters are there in the family?

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?

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