Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

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

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?

You and your two friends are working in a multinational company. How can you three find out the average salary of you all without disclosing your own salary to the other two?

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

When you stop to look, you can always see me. But if you try to touch me, you can never feel me. Although you walk towards me, I remain the same distance from you. What am I?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

Without looking at a calendar, within a minute name, a boy's name using 5 consecutive 1st letters of 5 consecutive months

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?

What can go up a chimney down, but can’t go down a chimney up?