John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

Our product and our sum always give the same answer. Who are we?

There’s a one-story house in which everything is yellow. Yellow walls, yellow doors, yellow furniture. What colour are the stairs?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

A new clothing store has a unique method of pricing items. A vest costs $20, a tie costs $15, a blouse costs $30, and underwear costs $45. How much would pants cost?

Solve the mathematical equation in the picture below.

During which month do people sleep the least?

It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?