Why 1729 is a magic number? Answer Logically.

Can you write down eight eights so that they add up to one thousand?

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

What kind of band never plays music?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

I am the fastest animal but cannot climb the tree. What am I?

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

During which month do people sleep the least?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

You walk into a creepy house by yourself. There is no electricity, plumbing, or ventilation. Inside you notice 3 doors with numbers on them. Once you open the doors you will die a particular way. Door No.1 You’ll be eaten by a lion who is hungry. Door No.2 You’ll be stabbed to death. Door No.3 There is an electric chair waiting for you. Which door do you pick?