Can you solve the maths in the below-given picture equation?

What has no start, end, or centre?

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different. How do you measure 45 minutes?

I shave every day, but my beard stays the same. What am I?

Can you place three balls such that the equation shown in the picture holds true?

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

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

10+10 and 11+11 can give you the same answer.

Explain how?

If 2 workers can complete painting 2 walls in exactly 2 hours.

How many workers would be needed to paint 18 walls in 6 hours?

I always drive my customer away.

Who am I?